- Chapter 1 The Silence of the Fields
- Chapter 2 The Vacant Key
- Chapter 3 Dots and Dashes
- Chapter 4 Whispers on the Wire
- Chapter 5 The Blue and the Gray
- Chapter 6 A Town in Shadows
- Chapter 7 The Broken Circuit
- Chapter 8 Letters in the Dark
- Chapter 9 The Picket Line
- Chapter 10 Footsteps on the Platform
- Chapter 11 The Courier's Warning
- Chapter 12 Static and Suspicion
- Chapter 13 The Midnight Dispatch
- Chapter 14 Codes of the Shenandoah
- Chapter 15 A Trespasser in Gray
- Chapter 16 The Intercepted Word
- Chapter 17 Brass and Blood
- Chapter 18 The Looming March
- Chapter 19 Tapping in the Dark
- Chapter 20 Across Severed Lines
- Chapter 21 The Price of Loyalty
- Chapter 22 The Watcher at the Window
- Chapter 23 The Final Pulse
- Chapter 24 Thunder at Dawn
- Chapter 25 The Tide Turns
- Chapter 26 Silence Across the Wire
The Telegraph Girl's Secret
Table of Contents
CHAPTER ONE: The Silence of the Fields
The red Virginia clay did not care about the war, but it demanded tribute all the same.
Clara Mercer wiped a streak of sweat and red dust from her forehead with the back of her forearm, leaving a dark smear across her pale skin. She leaned heavily against the wooden handle of the plow, her chest heaving in the humid May air. Before her, an old, sway-backed mule named Barnaby stood with his ears flopped forward, as exhausted as she was. Together, they had turned three acres of coarse, rocky earth since dawn, and three more lay waiting before the sun would drop behind the jagged crest of the Blue Ridge Mountains.
In the spring of 1863, the Shenandoah Valley was a place of ghosts and empty spaces. Two years earlier, the fields surrounding the small town of Fairview had echoed with the shouts of young men driving teams of six, the laughter of brothers racing to clear the lower pastures, and the sharp crack of leather reins over sleek, well-fed draft horses. Now, those young men were gone. Some were buried in shallow graves near Manassas and Fredericksburg; others were marching north or south under stained woolen banners, carrying muskets instead of scythes. The fat draft horses had long since been requisitioned by Confederate cavalry raiders or Union foraging parties, leaving behind only the lame, the ancient, and the broken to pull the plows.
Clara was nineteen, though her hands looked like those of a woman twice her age. Her palms were thick with yellow calluses, her fingernails perpetually rimmed with dark soil. She was tall and slender, with dark brown hair pulled back into a tight, severe knot at the base of her neck to keep it out of her eyes. People in Fairview considered Clara a quiet girl, if they considered her at all. She spoke only when spoken to, kept her head down when passing through town, and seemed to possess a natural talent for blending into the background of whatever room she entered.
That shyness was not born of weakness, but of necessity. Raised by a stern, widowed uncle after her parents succumbed to lung fever when she was eleven, Clara had learned early that an unnoticed child was a safe child. When her uncle died of a stroke just as the war began, she had taken employment as a hired hand on the farm of Thomas Higgins, an elderly widower whose bad hip prevented him from following his three sons into the infantry.
"Easy, Barnaby," Clara murmured, her voice soft and low, barely louder than the breeze rustling through the pine needles at the edge of the field. She reached out to pat the mule’s damp neck. "Just a few more furrows, old boy. Then we can call it a day."
The mule let out a long, shuddering sigh, his flanks quivering. He didn't move, and Clara didn't force him. She was grateful for the pause.
In the absolute silence of the late afternoon, the absence of sound was almost heavy. Before the war, a summer evening in the valley was a symphony of blacksmith hammers ringing against anvils, dogs barking across the creek, and the distant rumble of wagons heading toward the depot. Now, the silence was fragile, stretched thin like a dry skin. It was the kind of quiet that made a person hold their breath, waiting for the inevitable clap of thunder that would shatter it.
Sometimes, that thunder wasn't weather at all.
Clara turned her gaze toward the northeast. Beyond the tree line, twenty miles away, the rolling hills masked the movements of armies. For weeks, rumors had floated through Fairview like dandelion seeds. Some said General Lee was gathering his forces for a great thrust across the Potomac. Others claimed the Union army was sweeping down the valley in a blue tide, burning barns and seizing livestock as they came. To a farm girl whose entire world consisted of six acres of corn and a tin roof, the grand strategy of generals mattered far less than whether the next column of soldiers would leave them with enough grain to survive the coming winter.
A sudden, sharp metallic clink broke the silence. Clara stiffened, her ears straining.
The sound came from the road that bordered the northern pasture—a narrow, rutted dirt track that ran parallel to the Orange and Alexandria Railroad line two miles away.
Clara stepped quietly to the edge of the furrow, using the tall hazelnut bushes at the fenceline for cover. She squinted through the green leaves.
Down the road came a lone rider. He was dressed in a tattered gray coat, his slouch hat pulled low over his eyes to ward off the setting sun. His horse was a bone-thin bay that moved with a heavy, limping stride. Attached to the saddle was a wooden scabbard housing an old cavalry saber that clattered rhythmic against his stirrup—the source of the noise.
Clara didn't step out to greet him. In 1863 Virginia, an unfamiliar soldier, regardless of the color of his coat, was cause for caution. A hungry man with a pistol was a dangerous creature, no matter what cause he claimed to serve.
She watched from behind the bushes as the courier rode past. He looked exhausted, his shoulders slumped, his skin gray with fatigue under a thick coating of road dust. Leather dispatch bags bumped heavily against his thighs. He didn't look at the empty fields, nor did he see Clara standing frozen in the brush. He kept his eyes fixed entirely on the road ahead, pushing his limping horse toward Fairview.
When the rider disappeared around the bend, the silence settled over the fields once more, thicker and more oppressive than before.
Clara released the breath she hadn't realized she was holding. She walked back to Barnaby, unhooked the leather traces from the wooden single-tree, and guided the mule back toward the barn.
"Come on, Barnaby," she said softly. "Let's go check on Mr. Higgins."
The Higgins homestead consisted of a weathered, two-story farmhouse with peeling white paint, a lean-to kitchen, and a small timber barn that smelled perpetually of dry hay and old leather. Thomas Higgins was sitting on the front porch in an unpainted rocking chair, his splinted leg propped up on a wooden crate. A stone jug of water sat on the floor beside him, along with a dog-eared bible and a pipe that had long since gone cold for lack of tobacco.
"That you, Clara?" the old man called out, his voice thin and raspy like dry leaves scraping across a porch floor.
"It's me, Mr. Higgins," Clara replied, leading Barnaby toward the trough beside the barn door. She pumped the iron handle until cold, clear water bubbled up, and the mule plunged his muzzle in with eager splashes. "Got the south quarter finished. I'll get the seed down first thing in the morning if the rain holds off."
Higgins nodded slowly, his eyes fixed on the distant hills. "Saw a courier go by a bit ago. Moving fast as his horse would take him."
"I saw him too," Clara said, walking over to the porch steps. She wiped her hands on her apron. "Looked like he came down from Culpeper."
"Bad business," Higgins grunted, shifting his leg with a grimace of pain. "Couriers mean orders. Orders mean troops. And troops mean we won't have a fence rail left to burn by November. Did he say anything to you?"
"No, sir. I stayed out of sight."
"Good girl," Higgins said, approvingly. "Wise girl. Nothing good comes from talking to men with guns. They bring trouble in their pockets." He reached down to pick up his bible, his gnarled fingers tracing the worn leather cover. "Mr. Vance was up here yesterday while you were down at the creek. Sent his regards."
Clara blinked in surprise. Elijah Vance was the station master and sole telegraph operator at the Fairview depot. He was a small, round-shouldered man with thick spectacles and a mustache yellowed by pipe smoke. Unlike most of the townsfolk, who viewed Clara as little more than a quiet drudge, Vance had always been kind to her. Whenever she went to town to trade eggs or butter, he would offer her a lemon drop from a glass jar he kept on his desk and tell her stories about the far-off places the telegraph wires connected.
"How is Mr. Vance?" Clara asked. "I heard his cough was getting worse."
"It's bad," Higgins said, shaking his head. "Lung rot, most likely. He's spitting blood, Clara. Says he can barely sit up at his key for more than an hour without his head spinning. He asked if you were still coming into town tomorrow with the butter."
"I am. I've got eight pounds churned and wrapped in damp cloth in the cellar."
"Take two pounds down to Vance's quarters behind the depot," Higgins instructed, leaning back in his rocker. "Don't take no money for it, neither. He gave my boy John a job sweeping the platform before... well, before John went off to Richmond. We owe him."
"Yes, sir," Clara said gently.
She turned and walked into the cool darkness of the house to prepare supper. The kitchen was quiet, illuminated only by the faint orange glow of the embers in the brick hearth. Clara built up the fire with dry pine sticks, put a pot of cornmeal mush on to boil, and set out two pewter spoons and wood bowls.
As she worked, her mind kept returning to the courier she had seen on the road, and to Elijah Vance.
Clara had only been inside the Fairview telegraph office a handful of times, but the place held a strange, almost terrifying fascination for her. While the rest of the town felt isolated, cut off from the rest of the world by mountains and broken roads, the depot felt like the heart of a great, invisible network.
The brass key on Mr. Vance’s desk didn't make a loud sound—just a sharp, rhythmic clack-clack-clack that sounded like a beetle rapping against dry wood. Yet that tiny brass lever could talk to Richmond, to Washington, to armies marching in the night. It moved news faster than the swiftest horse, flying along thin iron wires strung across wooden poles like spiderwebs stretched over the countryside. To Clara, who found spoken words so difficult to manage, the idea of a language made entirely of simple dots and dashes, traveling silently through the air, seemed like a quiet miracle.
She carried a bowl of warm mush out to Mr. Higgins, who ate in silence, his eyes staring off into the twilight.
"Listen," the old man said suddenly, holding up his wooden spoon.
Clara paused, holding her own bowl. She listened intently.
At first, there was nothing—only the chirping of tree frogs in the woods and the soft whinny of Barnaby in the barn. Then, so faint it might have been a trick of the evening breeze, came a low, dull thud.
Boom.
It wasn't thunder. Thunder had a rolling, tearing sound that cracked across the sky. This was a flat, heavy concussive thud that vibrated through the soles of their boots rather than their ears.
Boom... boom.
"Artillery," Higgins whispered, his face drawn tight in the darkening dusk. "Up near the river. God help 'em."
Clara stood on the porch step, clutching her bowl, looking toward the north. The sky above the mountains was painted in streaks of bruised purple and violent orange. Somewhere up there, in the quiet hills, men were dying in the dirt.
The silence of the fields had returned, but it was no longer peaceful. It was the silence of a breath taken right before a plunge into cold water. Clara looked down at her rough, calloused hands, her thumb tracing the hard skin of her palm. Tomorrow she would go into town, leave the butter, and see Elijah Vance.
She turned and went back inside, shutting the heavy oak door firmly against the dark, and barred it from the inside.
CHAPTER TWO: The Vacant Key
The morning sun rose cold and pale over the crest of the Blue Ridge, casting long, sharp shadows across the dusty main street of Fairview. Clara drove the light farm wagon slowly, the wooden wheels creaking against the hard-rutted earth. In the back, tucked under a damp woolen cloth inside a cedar crate, sat eight carefully pressed blocks of fresh butter, along with a dozen eggs wrapped in straw. Barnaby plodded ahead, his ears twitching at every distant sound, his ancient hooves kicking up small clouds of fine Virginia dust.
Fairview in the morning light looked tired. The paint was peeling from the clapboard storefronts, and half the shutters on the upper floors were nailed shut. Women in faded calico dresses moved briskly between the dry goods store and the apothecary, heads low, avoiding the gaze of the three Confederate home guard soldiers leaning against the porch of the hitching post. The guards were older men, past fifty, dressed in mismatched coats with rusty muskets slung over their bony shoulders. They watched the road with dull, weary eyes, too exhausted by the heat and the unending war to do much more than nod as Clara passed.
Clara kept her hands steady on the reins, her eyes fixed straight ahead. She guided the wagon down the alley beside Miller’s Mercantile, coming to a stop near the rear platform of the Orange and Alexandria Railroad station.
normally, the depot was a place of frantic activity—freight crates stacked high, smoke curling from the iron chimneys of locomotives, and conductors shouting over the hiss of steam. Today, the single iron rail stretched away north and south like a cold, gray ribbon leading into nothingness. No trains had passed through Fairview in three days; rumor had it that Union raiders had torn up a section of track ten miles north, twisting the iron rails around fence posts into what the soldiers called "Jeff Davis neckties."
Clara climbed down from the seat, the skirt of her heavy linsey-woolsey dress rustling around her boots. She pulled two blocks of butter from the crate, wrapping them neatly in a clean linen cloth, and walked toward the small, weather-beaten door at the back of the station house.
This was Elijah Vance’s domain. The sign above the front entrance read Telegraph & Station Master, but the small room at the rear served as his kitchen, bedroom, and office combined.
Clara knocked gently on the heavy pine door. "Mr. Vance?" she called out softly.
There was no answer. Only the low, hollow whistling of the wind rustling through the eaves of the platform.
She waited a moment, shifting the bundle in her arms, then knocked again, a little louder. "Mr. Vance? It’s Clara Mercer. I brought the butter from Mr. Higgins."
Still, no sound came from within. No scrape of a chair, no heavy cough, no shuffling boots.
A cold prickle of uneasy dread touched the back of Clara’s neck. Elijah Vance was a man of rigid habits. He was always at his desk by dawn, adjusting the glass jars of battery solution or polishing the brass fittings of his telegraph key. Even when his lung condition left him trembling with exhaustion, he insisted on keeping the door unlocked so the townspeople could check for news from the front.
Clara turned the brass door handle. It yielded with a quiet click.
She pushed the door open into the dim room. The air inside was thick and metallic, smelling heavily of coal smoke, copper sulfate, and something else—a sour, copper-tinged scent that made her stomach tighten.
"Mr. Vance?" she whispered, stepping inside.
The office was small and cluttered. Books on electrical science and railway schedules were stacked precariously on high wooden shelves. Glass battery jars filled with amber liquid and zinc plates lined the baseboards, wired together in long, series circuits like silent, glittering soldiers. On the far wall, a small coal stove stood cold and dark.
Near the center of the room, sitting at a long oak desk beneath a dirty glass window, was Elijah Vance.
He was slumped forward, his head resting heavily on his left arm, which was stretched out across a pile of yellow telegraph blanks. His right hand hung limply over the edge of the desk, just inches above the smooth brass handle of the telegraph key.
"Mr. Vance!" Clara dropped the wrapped butter onto a side chair and rushed to his side.
She placed a trembling hand on his shoulder. His woolen coat felt stiff and cold to the touch. When she gently pulled him back, his head fell awkwardly against the top of the chair. His eyes were wide and milky, staring unseeingly at the exposed rafters above. A dark, dried stain of dark blood smeared his lips and silver beard, cascading down onto the front of his shirt.
Clara pulled her hand back as if she had touched a hot stove, her heart hammering against her ribs like a trapped bird. She stepped back, pressing her hand over her mouth to stifle a gasp.
He was gone. The sickness that had been gnawing at Elijah Vance’s lungs for months had finally claimed him, far from home, alone in the dim quiet of the depot.
For several long minutes, Clara stood frozen in the center of the room. The silence in the office was absolute, vast and crushing. Through the dirty window, she could see the empty railway line stretching out toward the green, rolling haze of the mountains. Fairview was now completely cut off. Without Vance, the town had no connection to the outside world—no way to know if armies were advancing, if family members were safe, or if help was coming.
Her eyes drifted slowly from the dead man's face to the desk.
There, mounted on a polished mahogany base, sat the brass telegraph key. It glinted softly in the weak sunlight slanting through the dusty glass. Beside it rested the sounder—a heavy iron electromagnet suspended over an anvil, wired to the long glass jars under the desk and out to the copper wires mounted on the tall poles outside.
It was just a piece of metal and wood, small enough to fit in a man's palm. Yet as Clara stared at it, the brass key seemed to possess a heavy, silent gravity.
She took a slow, deep breath, forcing her heart to steady its frantic rhythm. She had to fetch Dr. Polk, and then tell the town marshal. That was the proper thing to do. That was what any normal farm hand would do.
She took a step toward the door, then stopped.
A faint, rhythmic click echoed through the quiet room.
Clara whirled around, her pulse jumping.
The brass key on the desk hadn't moved, but the sounder beside it—the small iron arm mounted on the metal frame—had snapped downward with a sharp, metallic clack.
A pause. Then another clack.
Clack-clack... clack.
The wire was alive.
Somewhere miles away down the Shenandoah Valley, across rivers and through forest passes, another hand was pressing down on an identical brass key, sending an electrical pulse through the iron wire strung along the tracks. The pulse had traveled through the hills, leapt into the station room, and pulled down the tiny iron bar on Elijah Vance’s desk.
Clack-clack-clack.
Clara stepped back toward the desk, drawn to the sound like a moth to a lantern.
She did not know how to send complex military ciphers or manage the official railway ledgers. But during her frequent visits to the depot over the past two years, Elijah Vance had taken a quiet, paternal pride in showing the shy girl how the system worked. When her uncle had died, Vance had noticed how lonely she was, and how her sharp, observant mind hungered for something beyond the relentless drudgery of the farm.
"It’s not magic, Clara," Vance had told her one rainy afternoon, his thick spectacles sliding down his nose as he demonstrated the key. "It’s just rhythm. Like a song, or the ticking of an old grandfather clock. A short pulse is a dot. A long pulse is a dash. Put 'em together, and you can speak to a man in Washington before your coffee gets cold."
He had taught her the standard Morse alphabet, letting her sit in his chair and practice tapping out her own name until her fingers grew accustomed to the spring action of the brass lever. She had memorized the patterns—the quick double-beat of the letter E, the long, deliberate drawl of the letter O, the rolling rhythm of the letter Q. To Clara, who spent her days in the quiet company of a stubborn mule and an aging farmer, the rhythmic language of dots and dashes had felt less like a code and more like a secret dialect spoken only by those who knew how to listen.
The sounder clicked again, faster now, a urgent string of sharp taps.
Dot-dot-dot... dash-dash-dash... dot-dot-dot.
Clara's mind translated the sequence instantly, almost without her conscious thought.
S... O... S.
No, not an SOS—that was a maritime signal she had read about in Vance's pamphlets. This was the railway distress pulse.
The key fell silent for a moment, then began again, repeating the pattern.
FV... FV... FV...
FV was the station call sign for Fairview. Someone on the line was calling this exact desk, demanding an answer.
Clara looked at Elijah Vance. His pale, cold eyes seemed to fix on the key, as if waiting for his hand to move. But he remained still, a shadow in a room full of ghosts.
If no one answered, the operator at the other end of the line would assume the Fairview station was abandoned or destroyed. The wire might be grounded, or cut entirely. In time of war, a dead telegraph office was an blind eye on the map—a gap through which whole regiments could slip undetected.
The sounder tapped out the call again, sharper now, faster, carrying a clear edge of impatience across twenty miles of copper wire.
FV... FV... RESPOND...
Clara looked out the window. Down the street, the home guards were still leaning against the hitching post, oblivious. In the shops, merchants were sweeping their steps. No one in town knew how to operate the key. No one else knew the code. If Elijah Vance’s death was announced right now, the station would be locked up, the batteries allowed to go dry, and Fairview would sink entirely into the dark.
Her hand trembled. She reached out, her calloused fingers hovering an inch above the cold brass knob of the key.
She was just a farmhand. She cleared brush, pulled weeds, and churned butter. She didn't belong in this chair, touching official property of the railroad line, dabbling in the dangerous currents of a war that was tearing the country apart.
Clack-clack-clack.
The key demanded a response.
Clara pulled back Elijah Vance’s chair, the wooden legs scraping loudly against the floorboards. She carefully sat down, trying not to look at the stiff form slumped over the other side of the desk. She adjusted her skirt, took a deep breath, and rested her right index and middle fingers on the small, smooth wooden knob at the end of the brass lever.
The metal felt icy cold beneath her touch.
She reached over with her left hand and flipped the small brass switch at the side of the key—the circuit breaker. The instant she threw the switch, the local battery circuit closed with a quiet thump, connecting her key directly to the main line wire outside.
She held her breath, her fingers hovering above the knob.
Then, using the steady, rhythmic wrist movement Vance had taught her, Clara pressed down on the key.
Clack.
The sounder on her desk clicked in perfect unison. A short pulse. A dot.
She lifted her fingers, then pressed down again, holding it a fraction of a second longer.
Clack.
A dash.
Her heart pounded against her ribs so hard she was certain anyone in the room could hear it. She swallowed hard, forced her wrist to relax, and tapped out the response code Elijah Vance had used a hundred times before.
I... I... FV...
Translation: I hear you. This is Fairview.
She released the key, threw the side switch back to open the circuit, and waited, her ears straining against the heavy silence of the small room.
For five long seconds, nothing happened. The sounder sat quiet on its mahogany base.
Clara felt a sudden, terrifying rush of panic. Had she done it wrong? Had her rhythm been clumsy, exposing her as an imposter? Had she grounded the line and broken the connection entirely?
Then, the iron sounder came alive with a fury that made her jump in her seat.
CLACK-CLACK-CLACK-CLACK.
The incoming message came fast, sent by a practiced hand tapping at a furious speed. The brass key rattled on its base as the pulse flooded into the office.
Clara snatched a pencil from the desk tray with her left hand and pulled a clean yellow telegraph blank toward her. Her fingers flew across the paper, writing down the letters as her brain translated the rapid-fire bursts of sound.
REQ... STATUS... CULPEPER... LINE... TROOPS... MOVING... SOUTH... REPORT... ANY... CAVALRY... SIGHTINGS... IMMEDIATELY...
The key fell silent with a final, sharp tap.
Clara stared at the pencil marks on the yellow paper. Culpeper was demanding a status report on troops in the area. They were asking for intelligence.
She looked at Elijah Vance. His dead eyes seemed to offer no counsel.
If she didn't reply, or if she revealed that the operator was dead and a nineteen-year-old farm girl was at the key, they would know the line was compromised. But if she replied, she was stepping directly into the middle of military operations.
She looked out the window again. She remembered the exhausted courier who had ridden past the Higgins farm yesterday—the tattered gray coat, the heavy leather dispatch bags, the bone-thin bay horse moving south toward town. She remembered the flat, heavy sound of distant artillery thumping against the mountains at dusk.
She took a deep breath. She flipped the side switch, closing the circuit once more.
Her fingers rested on the brass knob. She hesitated for only a second, then began to tap, keeping her rhythm slow, deliberate, and smooth, pretending to be an old operator whose hands were stiffened by age and lung rot.
NO... CAVALRY... IN... FAIRVIEW... she tapped out. TRACKS... STILL... BROKEN... NORTH... ALL... QUIET.
She finished the message, released the key, and threw the switch back to open.
The wire fell silent. She waited, her heart in her throat, the pencil trembling between her dirt-smudged fingers.
A moment later, two short, sharp clicks came through the sounder.
OK... GN.
OK. Good night. Or in this case, Message received. Out.
Clara let out a long, shuddering breath and leaned back in the chair. Her back was slick with sweat, her knees trembling so badly they knocked against the wooden drawers beneath the desk.
She had done it. She had spoken through the wire, across miles of countryside, and been heard.
She sat in the quiet room for a long time, watching the sunlight shift across the floorboards. The spell was broken when the town clock in the church steeple three blocks away began to chime eight heavy, iron strokes.
reality rushed back over her. Elijah Vance was still sitting beside her, cold and still. The butter in her basket was beginning to soften in the morning heat.
Clara stood up slowly from the desk. She carefully picked up the pencil, laid it back in the wooden tray, and smoothed out the yellow paper she had written on. She folded the blank into a tight square and slipped it deep into the pocket of her apron.
She walked over to Elijah Vance. Gently, respectfully, she reached out and pulled his faded coat up around his shoulders, then took a clean pocket square from his desk drawer and laid it over his face.
"Goodbye, Mr. Vance," she whispered into the dim silence of the office. "Thank you for the lessons."
She turned, opened the heavy pine door, and stepped out onto the sunlit platform.
The air outside was fresh and warm, smelling of wood smoke and pine needles. The home guard soldiers were still leaning against the hitching post, flicking small pebbles into the dirt. Up the street, a blacksmith's anvil began to ring out its familiar, rhythmic beat.
Clara walked down the wooden steps to her wagon, climbed up onto the bench, and picked up the reins.
"Come on, Barnaby," she said softly.
The old mule pulled forward, the wooden wheels creaking as they turned onto the dirt street. Clara looked back once at the small, weather-beaten station house.
The brass key inside was vacant now, sitting cold and quiet on its desk. But as she drove through the center of town toward the doctor's house, Clara knew that the wire was still there, stretching out through the tall grass and pine trees, waiting for a hand that knew how to make it speak.
This is a sample preview. The complete book contains 27 sections.