The Horses of Tenochtitlan

• Chapter 1 The Herds of the Valley
• Chapter 2 Strange Sails on the Horizon
• Chapter 3 The Centaurs of Veracruz
• Chapter 4 Emissaries on Steeds of War
• Chapter 5 Smoke Over Cholula
• Chapter 6 The Emperor Reviews His Ranks
• Chapter 7 Steel Meets Obsidian
• Chapter 8 The March into the Basin
• Chapter 9 The Causeway of Hooves
• Chapter 10 Guests of the Great Temple
• Chapter 11 Whispers in the Stables
• Chapter 12 The Night of Thundering Water
• Chapter 13 Retreat Through the Reeds
• Chapter 14 The Plains of Otumba
• Chapter 15 A Clash of Cavalry
• Chapter 16 The Broken Lances of Castile
• Chapter 17 Alliance of the Red Hills
• Chapter 18 Siege of the Lake Cities
• Chapter 19 Fire on the Brigantines
• Chapter 20 The Fall of the Conquistadors
• Chapter 21 The Ransom of Malinche
• Chapter 22 The Long Road to the Coast
• Chapter 23 Blood in the Dunes
• Chapter 24 The Ships That Never Returned
• Chapter 25 An Empire in the Saddle
• Chapter 26 A New Dawn Over the Two Continents

The smell of horse dung was as ancient to the Basin of Mexico as the smell of roasting maize, though the priests at the temple school of Calmecac preferred to speak only of copal incense. Cuauhtli knew both smells intimately, but by midmorning, with the sun burning the mist off the salt flats of Texcoco, the dung was decidedly winning.

He rested his hand on the warm, coarse shoulder of his gelding, a dun-colored beast with black stockings and a dorsal stripe the color of burnt pine. The beast was called Teocuitlatl, or "Gold," not because anyone was sentimental enough to name a military charger after a metal they merely traded, but because the horse had cost four fine cotton cloaks and twenty baskets of dried chiles at the great market of Tlatelolco. It was an extravagant sum for a young man whose grandfather had fought as a common spearman, but times had shifted on the lakeshore. A man on foot was an honest citizen; a man in a saddle made the tribute collectors step into the mud to let him pass.

"Keep his nose down," Cuauhtli said over his shoulder, not looking back. "If he bites that mare again, the master of horse will have you skinning mules until the dry season ends."

Behind him, Citlal spat a glob of tobacco onto the packed earth of the ditch. Citlal was nineteen, two years younger than Cuauhtli, lean as a willow switch, and perpetually annoyed that horses had teeth at both ends. He was struggling with a roan filly that possessed the stubborn temper common to the highland breed—stocky, broad-chested animals with hooves as hard as river basalt, built low to the ground for navigating the rocky gullies of the Valley rather than showing off on the open flatlands of the north.

"The mare belongs to the temple precinct of Huitzilopochtli," Citlal grumbled, hauling on the woven yucca lead. "She thinks she is holy. She bit through my kilt yesterday because she smelled the grease on my hands."

"She bit you because you walk like an eagle warrior trying to dance on water," Cuauhtli replied, stepping into the stirrup loop. He swung up cleanly, his quilted cotton armor—the ichcahuipilli—creaking like a wicker basket. "A horse doesn't care whose temple your father built. A horse cares whether you have a pocket full of amaranth cakes or a quirt made of tapir hide."

The plain stretched north toward the dusty hills of Teotihuacan, wide and bleached under the high plateau sky. Centuries ago, the old stories said, the wild herds had drifted south through the Chichimec desert, running like brown water before the droughts. The ancients had hunted them with atlatls, driving them into marsh bogs for meat until some forgotten Toltec chief had the insolence to climb onto the back of a crippled yearling and discover that four legs could carry twice the dried beans of two men. Over three hundred years, the animal had remade the valley.

The Triple Alliance was built on many things—obsidian glass from the Sierra de las Navajas, cacao pods carried up from the hot lands, and the sheer terror inspired by the Jagged Mountain squads—but its sinews were horseflesh. The floating chinampas of Tenochtitlan grew vegetables and flowers, but the dry shore was pasture. Millions of wild grasses fed the great royal herds that grazed between the lakes, where boys from every barrio learned to ride before they learned to take a captive for the sun stone.

A low horn sounded across the scrub, two short blasts followed by a long, dying moan that made the stallions in the lower corrals toss their heavy heads.

"Lord Tlilpotonqui is inspecting the yearlings," Citlal muttered, checking the copper bit in his mare’s jaw. "Look at him. He dresses like he’s about to conquer the Otomí before lunch."

Cuauhtli looked toward the embankment. Coming down the packed dirt causeway from the town of Iztapalapa was a squadron of forty lancers. At their head rode Tlilpotonqui, the nephew of the Cihuacoatl, the second man in the empire. His mount was a massive black stallion, nearly fifteen hands high, imported from the open scrub of the northern Tarascan border where the horses ran taller and leaner. The beast was caparisoned in bright red featherwork that covered its chest and forehead, with a polished copper plate fixed over its skull to turn away sling-stones. The lord himself wore a sleeveless tunic sewn entirely with yellow parrot feathers, his leather-soled sandals gilded at the heels, and across his back rested the long, six-foot ash-wood lance tipped with a triangular blade of green obsidian.

It was an impressive display, designed to make the lake fishermen take off their hats and drop their eyes. Cuauhtli did neither, though he did touch his fingers to the forehead of his mount in the customary sign of respect for an officer of the rank of Tlacochcalcatl.

"Cuauhtli," the noble called out, checking his horse with a sharp tug on the braided horsehair reins. The black stallion pranced, its iron-hard bare hooves ringing on the limestone paving stones of the canal bridge. "How many in the south pasture?"

"Four hundred and ten, my lord," Cuauhtli said, speaking clearly. "Sixty mares with foals. The rest are three-year-olds, gelded in the third month as the priests directed. Most have taken the bit without killing anyone of importance."

Tlilpotonqui looked out over the sea of heads—chestnut, bay, roan, and pale dun—milling among the maguey plants. The horses grazed efficiently, their short, muscular necks bent to the thorny scrub, oblivious to the grandeur of the mountains encircling them or the white-capped peak of Popocatépetl venting its thin, lazy plume of smoke into the morning air.

"The Emperor has doubled the levy for the garrison at Tuxtepec," Tlilpotonqui said, leaning over his high wooden pommel. The saddle was a local invention, developed after many generations of men discovered that sitting on a bare blanket while an angry stallion wheeled under a hail of darts was a quick path to a broken pelvis. It had high, curved boards front and back, lashed to a birch frame and padded with layers of deer hide. "He wants three hundred mounts driven down to the hot lands before the rainy season turns the coastal roads into grease."

Cuauhtli frowned. "The coastal trails will rot their hooves, my lord. The horses from the Basin don't do well in the swamps. The flies eat them blind, and the salt grass gives them the belly-water."

"The Totonacs are behind on their vanilla tribute again," the noble said with a dry, humorless smile. "They seem to believe that because the passes are steep, we will only send foot soldiers who take twelve days to walk from the snow to the sand. When twenty lancers appear outside their palisade on the fourth morning, their memories improve wonderfully. They pay in dried vanilla, jade beads, and neat little girls who don't argue. Take the herd down through the gap at Cholula. The road is dry enough for five days yet."

"And if the Tlaxcalans come off the cliffs?" Citlal piped up from behind the dun gelding. He had managed to get his foot in the leather stirrup, looking half-seated and entirely nervous.

Tlilpotonqui turned a cold eye on the younger man. "The Tlaxcalans have their own herds, boy, but they lack the salt licks of the basin. Their horses are scrub runts the size of mountain sheep. If they come down, you lower your lance and you ride through them. Have you forgotten how to use the weight of your mount, or does your mother still hold your head when you drink pulque?"

Citlal turned the dark, reddish color of dried chili flesh and pulled his chin into the quilted collar of his jacket.

"We will drive them by way of Chalco, Lord," Cuauhtli intervened smoothly, sparing his companion further humiliation. "The grass is sweet along the lake margins there, and the watering is clean. We can be through the pass before the mountain wind begins to blow."

Tlilpotonqui nodded once, a brief jerk of the chin that set his green quetzal plumes shivering. He turned his black beast with a casual heel against its flank—a habit that marked a man who had spent three decades in the saddle rather than three months—and trotted back along the levee toward the city, his retainers falling into two neat columns behind him. Their lances caught the sun, forty points of dark glass flashing like cold green fire.

Cuauhtli watched them go. The movement of horses on the dikes was a daily music to the people of the Valley: the rhythmic clack-slap of unshod hooves on packed caliche, the clink of copper snaffles, the soft snorts as stallions tested the damp lake wind. To the west, across the salt expanse of the water, the great white pyramids of Tenochtitlan rose from the lake like limestone islands, their temple steps stained with the dark, brownish rust of old ceremonies, their painted walls shining like mirrors under the noon sun.

"I hate that man," Citlal said softly, finally settling into his saddle with a miserable creak of leather.

"You hate him because he has six wives and a horse that doesn't try to chew his knee off," Cuauhtli said. "Go down to the lower water-gate. Tell the herders to cut out fifty of the bays with good shoulders and the strongest backs. We leave at the turn of the watch."

"Tuxtepec is hot," Citlal whined. "There are snakes down there that can bite a horse through the fetlock. My cousin went down with the trade caravan last dry season and came back with worms under his skin that had to be pulled out with a reed needle."

"Then don't sleep in the grass," Cuauhtli told him. "Sleep on the saddle like the Chichimecs do. And mind that roan; she’s looking at your ear again."

Cuauhtli turned Teocuitlatl with a touch of his knee, heading away from the road toward the broad, flat pastures that ran south toward the chinampa beds of Xochimilco. Here the land was low and lush, fed by the sweet water that flowed from the springs beneath the southern mountains. The herds here were the prize of the huey tlatoani—animals bred not for the fast raids against mountain villages, but for the heavy shock work of the central army. They were thick in the barrel, broad across the rump, with the short, clean cannons that could carry eighty pounds of salt-quilted cotton and an armed man over twenty leagues of broken ground without cracking a tendon.

He found the old herder, an Otomí named Mextli whose ears were notched in the old style, sitting on an overturned salt crate beside the willow corrals. Mextli had no front teeth and smelled perpetually of rotten maize, but he could tell whether a mare was carrying a colt or a filly merely by watching the way she rose from the mud in the morning.

"The royal officers want three hundred," Cuauhtli said, sliding off the gelding and letting the reins trail in the dust. The dun dropped its head instantly, hunting for clover among the crabgrass.

Mextli didn't look up from the leather trace he was mending with a bone awl. "They always want three hundred. Then they lose fifty in the barrancas, founder forty more by running them through the cane breaks at noon, and come back complaining that the horses of Tenochtitlan aren't what they were in the days of Axayacatl."

"These are for the coast," Cuauhtli said.

The old man stopped his awl. His eyes, milky around the edges from forty years of smoke and lime dust, fixed on Cuauhtli's knees. "The coast? The water is sour down there. The sky hangs low like a dirty wet blanket. It is no place for an animal with hooves. The earth is too soft; their feet turn to squash."

"The Emperor's nephew says the Totonacs need a lesson."

"The Totonacs always need a lesson," Mextli grunted, pulling a greasy strand of sinew through a hole in the leather. "They live on sweet potatoes and fish; of course they have no brains. But you don't waste good three-year-olds on fishermen. If you take the bays from the south herd, take the ones with the wide feet. The ones from the lake-bed stock. Their mothers ran in the tules around Cuitlahuac. They have flat nails, hard as obsidian, and they don't rot as fast as the mountain horses."

"Show me," Cuauhtli said.

They spent the heat of the day moving through the enclosures, their leather sandals stirring up the sweet, dry smell of crushed stems. The horses were quiet in the noon furnace, standing head-to-tail under the shade of the great ahuehuete cypresses, swishing away the small gray flies with rhythmic flicks of their docks. Cuauhtli knew them by their lineages—not recorded in sheepskin books like the tribute accounts, but remembered in the long, rhythmic songs the herders sang by the smudge pots at twilight.

There were the lines of the Red Shield, short-legged and vicious, who would strike out with their forefeet at a footman’s shield if their rider dropped his hand; there were the White-Faces from the northern marshes, swift enough to catch an antelope on the salt plains but soft in the bone if worked through stone beds; and there were the common, dun-and-black horses that the warriors of the calpulli clubs rode, sturdy beasts that ate anything from dried maize leaves to mountain gorse without losing their flesh.

By mid-afternoon, they had culled eighty head into the lower pen. The dust was thick enough to coat Cuauhtli’s teeth, gritting between his jaws like sand in an undercooked tamale. He sat on the top rail of the cedar fence, his knees pulled up, watching a young two-year-old colt try to mount an indifferent grey mare who simply sidestepped and kicked him neatly in the ribs.

The colt squealed, rattled its head, and went back to chewing on the fence post.

"They are fat," a voice said from the ditch below.

Cuauhtli looked down. It was his father, Xicotenc, walking his own mount home from the salt pans. The older man was leaden-shouldered now, his hair streaked with iron, his left knee permanently stiffened from an old encounter with a Tarascan bronze axe twenty years back during the wars on the Lerma river. His horse was an ancient, sway-backed chestnut whose skin hung loose about its throat like the skin of an old lizard, but the animal had a clear, intelligent eye that followed the older man's every twitch of the hand.

"They'll lose the fat between here and the mountain pass," Cuauhtli replied, hopping down from the rail. "Tlilpotonqui wants them in the south within the month."

Xicotenc stood with his hand resting comfortably on the chestnut's wither. "The city is full of strange talk today," he said quietly, his voice dropping below the rattle of the wind in the reeds.

"The tribute from the Mixtecs?"

"No," his father said, squinting across the bright mirror of the lake toward the eastern causeway. "The runners came in this morning from the coast. Three days from the sand dunes. They say the water has brought something strange to the shore near Chalchiuhcuecan."

Cuauhtli laughed, brushing the dirt from his thighs. "More rafts from the Mayas? If they brought more of those little yellow dogs that can't bark, Citlal will buy three of them. He likes anything that has less sense than he does."

"Not rafts," the old man said, and his voice did not have the rhythm of a joke. "Floating houses. Tall as the great pyramid, with white clouds tied to their poles. And the runners swore by the five suns that the men inside them were white as chalk, with hair like dry grass on their chins."

Cuauhtli paused, his hand halfway to the cinch of his saddle. He looked at his father’s face. Xicotenc was not a man given to temple stories; he had buried two brothers in mountain graves and spent fifteen years keeping the ledger of the grain stores for the barrio of Moyotlan. He was as dry as sun-baked brick.

"White men?" Cuauhtli said. "The priests say Quetzalcoatl had a beard, but the priests say many things when the pulque is fresh."

"Not just men," the father added, turning his old chestnut toward the adobe walls of their compound behind the corrals. "The runners said they had beasts with them. Beasts like ours, but taller than any horse seen since the world began. Great, heavy monsters with ears like broad knives and iron shoes nailed directly to the meat of their feet."

Cuauhtli looked down at Teocuitlatl’s hooves—neat, black, smooth as river jade, worn down by the grit of the valley to a perfect, circular curve that needed no iron to keep from splitting. He had seen hundreds of horses every day of his life; his father had seen thousands; their grandfathers had known the wild bands that ranged the northern plateaus before the stone walls were built. A horse was a horse. It was three hundred pounds of bone, blood, and bad intentions, useful for carrying a lance and quick to die if you let it drink while its chest was hot.

"Iron on their feet?" Cuauhtli said, shaking his head. "The weight would break their knees in a league. The runners have been eating the black mushrooms again."

"Perhaps," the old man said, leading the chestnut through the gate. "Perhaps not. But the Emperor has ordered the council of the four quarters to meet at the Palace of Axayacatl tonight. And the Master of the Horse has been told to stop all sales in Tlatelolco. Not a single mare leaves the valley without the seal of the Cihuacoatl."

A sudden breeze came off Lake Texcoco, cold and sharp with the salt that crusts the northern shore. It smelled of brine, dried mud, and the hundreds of animals shifting restlessly in the willow pens, their tails swinging like gray pendulums against the setting sun. Teocuitlatl raised his head, snorting once through his wide, dark nostrils, his ears pointed east toward the dark rim of the mountains where the road dropped down through the clouds into the jungle.

Cuauhtli laid a hand against the gelding’s warm throat, feeling the steady, rhythmic pulse of the blood beneath the skin. "We leave at first light," he muttered to himself, but he did not look at the south road. He looked toward the mountain gap, where the snow on the ridge was turning from white to the color of cold copper under the dying sun.

The smell of the sea was not something Cuauhtli’s nose had been shaped to understand. To an inland man raised among the freshwater rushes of Xochimilco and the soda-crusted shores of Texcoco, the ocean did not smell like water at all. It smelled like rotting weeds, spilled copper, and dead crabs baking beneath a relentless, heavy sun that seemed to press directly against the back of his neck.

The descent from the central plateau had taken twelve days instead of the usual five, largely because the eighty head of three-year-olds had fought every step down the cloud forests of the eastern pass. The highland horses disliked the humidity even more than Citlal did; their coats grew slick with sweat that refused to dry in the damp air, and the clay tracks through the barrancas had tested their hooves. But old Mextli had known his business. The broad-hoofed bays from the southern lake-margins had gripped the slick red mud without throwing splints, sliding on their haunches down the stone stairs carved into the cliffs, their nostrils blowing long whistles of vapor into the mountain ferns.

By the time the column reached the rolling sand dunes near Chalchiuhcuecan, the cool winds of the highlands were entirely gone. Here, the landscape flattened out into long sweeps of gray-yellow sand, broken only by low thickets of thorny scrub, sea-grape bushes, and the occasional brackish estuary where pelicans nested like gray stones among the mangrove roots.

"Look at them," Citlal muttered, slumping forward in his high-pommeled saddle as his roan mare plodded through the loose sand. "They have no bones in their faces. They look like they've been boiled in lye."

He was not talking about the horses, but about the Totonac fishermen whose village clustered along the dunes a half-league back from the shore. The local people had come out of their reed huts not with flowers and turkeys, as subject folk were meant to greet the royal couriers of Tenochtitlan, but with hollow eyes and trembling fingers. They had barely looked at the forty Aztec lancers or the remount herd. Instead, their faces had been turned toward the gray-green emptiness of the Gulf, where three great shapes hung against the line between water and sky.

Cuauhtli reined in Teocuitlatl on the crest of a high dune. The dun gelding shifted its weight, blowing a spray of sand from its velvet nose. Cuauhtli leaned over the wooden bow of his saddle, resting his forearm across his knee, and stared.

They were there, just as the breathless runners had reported to the council in the capital. Three vessels, riding at anchor beyond the white break of the surf, rising and falling on the slow swells like water-striders carved from dark pine. They were vastly larger than the trading pirogues that came up from the Maya coast—hulk-like things with rounded ribs, tall fore-castles that jutted upward like the platforms of temple towers, and bare masts that laced the sky with a spider’s web of hemp cordage. Two were three-masted carracks, their sails furled neatly along the yards like bundles of salted fish; the third was a smaller, swifter caravel that danced nervously on its hawser, tugging against the tide.

Beside Cuauhtli, Lord Tlilpotonqui adjusted the yellow parrot-feather mantle on his shoulders. He was sweating freely under the quilted armor, and the heat had not improved his temper.

"They have been anchored there since yesterday's noon," the noble said, his voice flat. He pointed with the tip of his obsidian-bladed lance toward the flat curve of the beach below. "And they have set up an encampment on the sand spits. See?"

Down along the tide line, well clear of the mangrove thickets, a camp had been thrown together. It consisted of several large, ridged tents made of some coarse, grey fabric that billowed in the sea wind, surrounded by a makeshift redoubt of water barrels, turned-over rowboats, and sharpened wooden stakes driven into the beach.

Even from the dunes, half a mile away, the figures moving among the tents looked fundamentally wrong to Cuauhtli’s eyes. They moved with a peculiar, heavy swagger, and their bodies caught the morning sun in dazzling, blinding flashes that could only be polished steel.

"Iron men," Citlal whispered, his roan mare stepping back nervously as a sea-breeze brought the camp's scent up the slope.

The dun gelding caught the smell too. Teocuitlatl’s ears shot forward, his tail lifting in an arch. He let out a low, rumbling whinny—not the challenge he gave to strange stallions in the corral, but the curious, seeking call a horse gives when he scents others of his kind over an unfamiliar ridge.

From down on the sand spit, past the rowboats and the gray tents, an answer came back.

It was a sound that made every man in the Aztec detachment freeze. The answering neigh was deep, resonant, and remarkably loud, rolling across the dunes like the bellow of an alligator in the Papaloapan marshes. It was followed by the unmistakable, hollow clop of a hoof striking wood—a dry, ringing tock that was sharper and heavier than the sound of bare horn on gravel.

"There," Cuauhtli said, pointing toward a line of pickets driven into the wet sand behind the barrels. "They have them."

There were animals tied there under a crude brush arbor designed to keep off the sun. Even at this distance, their size was startling. Cuauhtli had spent his entire life studying the lines of horses; he knew the stocky, thick-necked highland pony that could live on dry thistle; he knew the rangy, wolf-jawed runners from the northern plains; he knew the fat-bellied, docile pack-beasts bred by the Otomí. But the creatures down on the beach were something else entirely.

They were tall—sixteen hands, perhaps more—with arched, heavy crests that curved like the bows of war canoes. Their legs were long, straight, and clean of feathering, ending in fetlocks that looked as thick as a man’s calf. One of them, a dappled grey with a tail that nearly swept the wet sand, tossed its head against its halter. As it moved, its hooves kicked up showers of damp shell-dust, and Cuauhtli saw the glint of dull, dark metal encircling the bottom of its foot.

"Iron shoes," Cuauhtli said softly, feeling a curious prickle along the back of his arms. "The old man was right. They nail iron to their feet."

"Why would anyone do that?" Citlal asked, squinting against the sea-glare. "It would make them slow. It would weigh their legs down like rocks in a fishing net."

"To protect the horn from stone," Tlilpotonqui said, though he spoke without his usual certainty. He was leaning forward, his dark eyes fixed on the heavy gray charger. "The Spaniards—if that is what the Maya captives called them—must fight on roads made of flint. Or perhaps their horses are made of softer bone than ours. But look at their backs. Look at the length of their loins."

Cuauhtli studied them with the critical eye of a calpulli herder. "They are too long," he observed. "A horse with a back like that cannot carry two sacks of beans through the barrancas without breaking down. And look at their chests. They are deep, but narrow. They are built for a straight sprint on flat ground, like a deer. If you turned that gray beast loose in the scrub hills around Texcoco, it would snap an ankle before the second sun."

"They are not carrying beans," Tlilpotonqui remarked dryly. "They are carrying men in metal shirts."

A group of figures had emerged from the largest tent down on the sand. Cuauhtli counted eleven of them. Most were on foot, carrying long wooden poles tipped with iron points or resting the heavy stocks of strange, crook-backed cross-bows against their thighs. But two of them were already mounted.

Even from the ridge, the height of the foreign riders was imposing. They sat in high-cantled saddles that pushed their legs far forward in long, rigid stirrups, their knees barely bent. One of them wore a breastplate that burned like a mirror in the noon sun; atop his head was an iron bowl with a curving ridge like the crest of an iguana. He held the reins in his left hand, high against his breast, while his right hand rested on the pommel of a broad, straight sword that swung against his stirrup-leather.

"The local governor, Tendile, went down to them three days ago," Tlilpotonqui said, turning his black mount sideways along the ridge. "He took them five cartloads of tortillas, forty jars of honey, and two feather cloaks from the imperial storehouse at Cempoala. He told them the Great Speaker, Montezuma, sent his greetings from the heart of the world, and asked them politely to return to their water-houses and go back to wherever their mothers live."

"And what did the iron-shirt say?" Cuauhtli asked.

"He asked if Montezuma had any more gold," the noble spat. "He said he and his companions suffered from an illness of the heart that could only be cured by gold. Then he had his men fire one of their bronze tubes. The smoke smelled like burning mountain-pitch, and the ball went through a wooden fishing boat like a fist through a dry gourd."

"They don't look like gods," Citlal remarked, emboldened by the daylight and the eighty fresh lances behind them. "A god wouldn't smell like rancid pork from a league away. Even the sea wind can't hide it."

"They are not gods," Tlilpotonqui said sharply. "The priests in Tenochtitlan might wonder about Quetzalcoatl when they are chewing morning-glory seeds in the dark, but the Master of the Horse knows better. A god does not need three men to help him get into a saddle because his coat of iron is too heavy for his legs. Look at him."

Down on the shore, the mounted Spaniard in the shining breastplate—whom the interpreters would later identify as the captain, Hernando Cortés—was putting his grey charger through its paces. He rode the beast back and forth in the wet sand, spurring it into a sudden, explosive canter. The horse moved with undeniable majesty, its iron shoes churning up gray foam as it wheeled neatly on its haunches and surged forward again, its neck arched high, white spittle flying from its bit.

It was a performance clearly staged for the benefit of the watching Totonacs, several dozen of whom had pressed themselves flat against the sand by the water barrels, their arms over their ears as though waiting for thunder.

Cuauhtli watched the grey charger closely. He noted the way the animal took the bit—not a simple copper bar or a soft leather hackamore like the highland mounts used, but a heavy, hinged contraption of dark iron with long curb shanks that forced the horse's chin down toward its breast. The creature was not obeying its rider’s legs; it was fleeing the pain in its teeth.

"It has speed," Cuauhtli murmured, thinking aloud. "More than ours on the first burst. But see how it breathes? Its flank is already heaving like a smith’s bellows. It has no wind for this air."

"It came from a ship," Citlal pointed out. "If you had been tied in a dark wooden box for two moons, eating dry straw and drinking sour water from a tub, you wouldn't run well either."

"True," Cuauhtli admitted. "Still. A horse that cannot drink the water of the hot lands without getting the colic will not live long in the valley."

As they watched, a small boat broke away from the side of the caravel, its four oars dipping in rhythmic splashes into the surf. In the stern sat another man in a metal breastplate, accompanied by two figures dressed in the flowing, blue-bordered cotton mantles of native nobility.

"Tendile has returned," Tlilpotonqui said, his voice tightening. "He has the royal painters with him. The Emperor wants drawings of everything: the ships, the tubes that spit smoke, the iron shirts, and the long-legged beasts. We must go down. Tendile needs forty lancers behind him, or these sea-thieves will think we are all fishermen who tremble when a horse sneezes."

"Do we take the herd?" Cuauhtli asked, glancing back at the eighty bays who were currently standing knee-deep in the dry sea-grass, industriously stripping the salty pods from the scrub bushes.

"Leave the boys to guard them," the noble ordered. "Form the lances in two ranks. Cuauhtli, take the left flank. Citlal, stay behind me and try not to fall off if your mare sees a crab."

They formed up quickly on the crest of the dune. There was no shouting, no loud braying of horns; the highland cavalry was trained to move with the disciplined quiet of men whose lives depended on surprise among the narrow mountain paths. Forty riders dropped their lances from their shoulders, settling the butts into the leather cups hooked behind their stirrup irons. The long shafts of seasoned ash, six feet of smooth wood tipped with seven inches of green Pachuca glass, slanted forward like a grove of saplings tilted by a gale.

Cuauhtli checked his cinch with a tug of his thumb, settled his weight firmly between the high boards of his birch saddle, and touched his heel to Teocuitlatl's flank. The gelding moved off the ridge with a light, rhythmic trot, its unshod hooves making only a soft, rustling hiss in the dry sand.

Behind them, the forty mounts walked abreast, their dark eyes calm, their ears pricked toward the sea. They were not impressive in the manner of the European chargers; they were smaller, their coats dusty and unclipped, their manes coarse and cropped short to prevent an enemy's fingers from finding a hold in the press of a melee. But they moved as one creature, shoulder to shoulder, balanced and sure-footed on the shifting slope where a taller, top-heavy beast would have stumbled.

Down on the beach, the change in the Spaniards' posture was immediate.

The captain on the grey charger suddenly hauled back on his curb reins, bringing the animal to an awkward, sliding halt that threw up two great plumes of wet sand. From the encampment, shouts went up in an unfamiliar, harsh tongue that sounded like stones rattling in a dry leather bucket. Men in steel helmets rushed out of the gray tents, fumbling with matches and winding up the levers of their crossbows.

Cuauhtli saw several of the foreign foot soldiers stop dead in their tracks, their mouths dropping open beneath their rusted visors. They had clearly expected more barefoot emissaries bearing jade beads and roasted turkeys; they had not expected forty mounted warriors coming down the dune in battle formation, their quilted armor bleached white by the highland sun, their lances bright with green glass, and their horses moving with the casual, terrifying confidence of beasts that knew the business of war.

"Look at them," Citlal whispered, his teeth showing in a small, fierce grin. "They think they are the only ones who know how to sit on a four-legged skin."

"Silence in the ranks," Tlilpotonqui barked, though he did not check his pace.

The Aztec troop reached the bottom of the dunes and swung into a broad, sweeping arc that brought them along the hard-packed sand near the water line, forty paces from the Spanish redoubt. The maneuver was executed with the easy grace born of years of herding cattle and chasing deer across the valley flats. As one, forty riders drew rein; forty horses stopped, their heads up, their tails flicking against their hocks, completely indifferent to the strange smell of sulfur and stale ship-bread that hung over the beach.

Ten paces ahead of them, the royal governor Tendile stepped out from the rowboat, his sandals splashing into the shallow water. Behind him came two scribes carrying rolls of fine deer-hide parchment and pots of black and red cochineal ink. Tendile was a tall, severe nobleman from Texcoco, his face painted with yellow ochre for diplomacy, but his hands were steady as he gestured toward Tlilpotonqui's squadron.

"Captain," Tendile called out in his resonant Nahuatl, which was immediately taken up by a young native woman who stood near the Spanish commander's stirrup—a woman with the sharp, watchful eyes of a marsh hawk, wrapped in a bright coastal huipil. "I have brought the escort that the Great Speaker promised to show you. You spoke of your beasts that run like wind. We wished to show you the ones that carry the arrows of the sun."

The Spanish captain, Cortés, sat motionless in his steel saddle. For a long moment, the only sound on the beach was the rhythmic, hollow wash of the surf against the shore and the occasional rattle of a bit.

Cuauhtli did not look at Tendile, nor at the foreign captain. He looked at the Spanish horses.

There were sixteen of them in total, tied along the picket line. Now that he was close enough to see the sweat-lines on their hides, he saw that they were exhausted. Their hip bones showed sharply through their skin like tent poles through canvas; their legs were scarred from the rough timber stalls of the carracks; and two of the mares had swollen, puffy joints that suggested the long voyage had ruined their legs for good.

Yet, there was power in them. Their bone was heavier than the highland stock, their jaws broader, their hindquarters rounder and packed with thick, European beef. They looked like horses bred to smash through ranks of footmen on frozen northern mud—heavy, blunt instruments of iron and muscle.

One of the Spanish lancers, a man with a reddish beard that spilled out from under his steel cap like dried corn silk, walked slowly toward the front of the redoubt. He was leading a chestnut stallion by a short leather lead. As he approached the Aztec line, his eyes swept over Cuauhtli's dun gelding, taking in the small, compact head, the wide-set eyes, the hard, black hooves that had never known an iron nail, and the simple rope hackamore that controlled the beast with a light pressure on the nose.

The red-bearded soldier muttered something in his foreign tongue to his companion. He reached out a hand, his leather glove gray with salt, as if he intended to touch Teocuitlatl's shoulder.

The dun gelding did not rear. It simply dropped its ears flat against its skull, snaked its neck out with the speed of an emerald rattlesnake, and snapped its teeth together two inches from the Spaniard’s fingers. The clap of teeth on air sounded like a whip-crack.

The red-bearded man leaped back with an oath, nearly tripping over a coil of hemp anchor-rope, his hand flying to the hilt of his broadsword.

Cuauhtli did not move his body, but he gave a tiny, nearly invisible tug on the left rein. Teocuitlatl settled back onto all four feet, his ears flicking forward again, innocent as a lamb grazing on wild clover.

A brief, sharp snort of laughter came from one of the Aztec riders behind Citlal.

Cortés leaned down from his gray charger, speaking in low, rapid tones to the woman at his side. The woman—Malintzin, the coastal people called her—listened intently, her eyes flicking from the Spanish captain to the ranks of Aztec cavalry before she turned to face Lord Tlilpotonqui.

"My captain wishes to know," she said, her Nahuatl smooth and clear, though colored by the soft vowels of the southern coast, "from what land these horses come. He asks if they were brought from the islands across the salt sea, or if they are the children of the herds that belong to the King of Spain."

Tlilpotonqui smiled—a slow, thin parting of his lips that showed the jade plug set into his lower jaw. He did not dismount. In the Valley, a nobleman spoke from the saddle when he addressed people who had not yet been assessed for tribute.

"Tell your captain," Tlilpotonqui replied smoothly, "that these horses were running on the plains of the five lakes when his grandfathers were still digging roots with wooden sticks. They belong to the Huey Tlatoani, Montezuma, and to no other king under the sky. Their fathers drank the water of the snow-mountains, and their mothers ate the wild grass of the northern deserts before there was a single stone laid in Tenochtitlan."

Malintzin translated. As she spoke, Cuauhtli watched the Spanish captain’s face. The man’s jaw set hard beneath his trimmed black beard. The easy confidence that had marked his display on the wet sand had vanished, replaced by a cold, calculating stillness that Cuauhtli had seen before in the eyes of old jaguar warriors before a night raid.

Cortés said something short and harsh. A soldier near one of the bronze tubes immediately blew on a smoking hemp match, but the captain raised his left hand, checking the gunner with a sharp snap of his fingers. He was too clever for that; he knew that firing a cannon now would only show fear, and the lancers were close enough that forty glass points could cross the thirty paces of sand before the smoke had even cleared the muzzle.

Instead, Cortés touched his heels to his mount, moving forward three paces until he was separated from Tlilpotonqui only by a line of low, green sea-vines that crawled across the beach.

He reached up, took off his steel helmet with a flourish, and inclined his head. It was a soldier’s greeting—neither submissive nor friendly, but an acknowledgment between men who understood the language of the lance.

"He says," Malintzin called out, "that he has traveled five thousand leagues across the great water to bring the words of the greatest lord of the sunrise to the greatest lord of the sunset. He says that where there are horses, there must be great captains. And where there are great captains, there must be a meeting."

Tlilpotonqui rested the butt of his lance on his thigh, letting the obsidian point catch the blinding white light of the coastal sky.

"The meeting will happen when the Great Speaker decides," the Aztec commander said. "Until then, your captain would do well to stay near his ships. The grass on these dunes is thin, and the water in the wells turns sour after three days. A horse needs clean water, Captain. If its belly fills with sand, its legs become water, and a man without a mount in our country has a very long walk home."

He didn't wait for the woman to finish translating. Tlilpotonqui wheeled his black stallion with a sudden, sharp heel that sent a spray of salt-crust toward the redoubt.

"Riders of the House of Arrows!" he shouted. "Column of twos! To the camp!"

Cuauhtli turned Teocuitlatl, falling neatly into position behind the noble's left flank. As the gelding swung around, Cuauhtli glanced back one last time toward the gray tents.

The Spanish captain was still sitting on his heavy gray mount, motionless against the backdrop of the rolling surf and the tall, silent ships that swung at their anchors. He had put his steel helmet back on, his face shadowed beneath the iron brim, but he was watching the Aztec detachment retreat toward the dunes. His lancers had gathered behind him, their hands on their reins, staring after the forty highland ponies that trotted easily through the heavy sand, their movements loose and unhurried.

"They're big," Citlal muttered, pulling his mare up beside Cuauhtli as they began the climb back up the long slope of the dune. "I'll give them that. The gray one was as tall as an elk. But did you see its feet?"

"I saw them," Cuauhtli said.

"They won't last four days on the road to Cholula," the younger man said, shaking his head. "The iron will pull their nails out when the clay gets wet. And that bit! If I put a piece of iron like that into my roan's mouth, she'd throw herself over a cliff just to spit it back at me."

"They don't intend to ride to Cholula on our roads," Cuauhtli replied, looking over his shoulder toward the three ships that bobbed on the gray water like water-fowl waiting for fish. "They intend to ride on their own."

They reached the crest of the ridge where the remount herd was waiting under the watch of the herder boys. Below them, to the west, the long road led back into the interior—past the green, steaming swamps of the hot lands, up through the limestone ravines of the lower hills, and over the high, frozen pass between the volcanoes to where the great lake lay like a turquoise shield under the sky.

A hundred and fifty leagues away, in the cool, stone courtyards of the palace, the scribes were already waiting with their brushes and their inks, ready to paint the tall beasts with iron feet and the floating houses with white clouds for sails.

Cuauhtli dismounted, running his palm down Teocuitlatl's foreleg to check the tendon for heat. The leg was cool, dry, and clean. The gelding leaned its head against his quilted shoulder, blowing a warm, moist breath against his neck that smelled comfortably of the mountain thistle they had carried down from the pass.

"Come on, little gold," Cuauhtli whispered, patting the coarse, dun-colored cheek. "We have to show the old men how to draw an iron shoe."