Aegis Academy's Janitor

• Chapter 1 Spill on Floor Four
• Chapter 2 S-Rank Scuffs
• Chapter 3 The Mop and the Micro-Fracture
• Chapter 4 Hazard Pay for Scorched Tiles
• Chapter 5 Wringing Out the Plasma
• Chapter 6 The Prodigy's Faulty Circuit
• Chapter 7 Duty Calls at Midnight
• Chapter 8 Bleach for Dark Matter
• Chapter 9 Down the Training Room Drain
• Chapter 10 Dust Bunnies and Kinetic Spikes
• Chapter 11 The Rust in the Iron Maiden
• Chapter 12 Maintenance Closet Secrets
• Chapter 13 Midterm Breakdowns
• Chapter 14 Scrubbing the Void
• Chapter 15 A Bristle Through the Ley Line
• Chapter 16 Wet Floor: Watch Your Aura
• Chapter 17 The Lost Squeegee of Prometheus
• Chapter 18 Splintered Shields and Stripped Wax
• Chapter 19 Faculty Evaluations
• Chapter 20 Polishing the Glass Cannon
• Chapter 21 The Storm in the Boiler Room
• Chapter 22 Red Tape and Yellow Tape
• Chapter 23 The Academy Under Siege
• Chapter 24 The Heavy-Duty Bucket
• Chapter 25 Sweeping Up the Battlefield
• Chapter 26 Clean as a Whistle

The smell was always the giveaway. Ordinary vomit smelled like sour milk and bad life choices, but an esoteric feedback expulsion smelled distinctively like burnt ozone, copper shavings, and warm root beer.

Henry Mercer paused his squeaky rolling cart in the middle of the fourth-floor corridor, leaned his forearms against the yellowed plastic rim of the industrial mop bucket, and sighed. A dull, rhythmic alarm throbbed through the reinforced ceiling tiles above him—not the building-wide evacuation siren, thank heavens, but the local containment chime that sounded whenever a sophomore managed to turn their internal combustion outward without checking the ambient pressure.

"Code Indigo," the intercom crackled in the voice of Dean Vance’s second assistant, a perpetually panicked young woman named Brenda. "All non-essential personnel are advised to clear the West Wing, Level Four. Sub-level vent valves are closing. We have an unspooled charge in Corridor 4-B. Repeat, Corridor 4-B."

Henry reached into his faded canvas chore coat, extracted a half-eaten roll of peppermint candies, popped one into his mouth, and gave the cart a gentle shove forward. Non-essential was an administrative term. The accountants used it to determine who got parking permits close to the glass atrium and who had to park down by the old boiler plant behind the incinerator. In reality, when eight thousand volts of raw, half-digested bio-kinetic potential were actively eating through the terrazzo flooring, an assistant dean with a clipboard wasn't particularly useful. A man with twenty gallons of neutralizing brine and a string mop, however, was about as essential as it got.

Corridor 4-B looked like a thunderstorm had tried to squeeze through a pneumatic tube.

The walls of Aegis Academy were supposedly lined with three-inch panels of shock-absorbing composite, rated to withstand the direct impact of an anti-tank shell or an over-enthusiastic freshman punch. Right now, three of those panels were curled outward like charred orange peels, their edges glowing cherry red. Splashed across the center of the hall was a puddle of iridescent, lavender slime that hissed loudly, bubbling in reverse—every pop pulled in air instead of releasing it, creating tiny, clicking vacuums that plucked at Henry’s denim pant legs.

Crouched against the lockers twenty paces away was young Julian Vance, nephew of the dean and arguably the most arrogant third-year student to ever fail basic aura stabilization. Julian’s hands were shaking. His custom-tailored Aegis uniform—navy blue with silver piping, indicating high-tier enrollment—was torn at the shoulder, revealing skin that flickered with spidery, violet veins. His eyes were wide, the pupils blown wide enough to swallow the irises entirely, vibrating at an unnatural frequency.

"Don't... don't touch it," Julian croaked, his voice pitching high with terror. A stray arc of purple lightning snapped off his elbow, blowing a chunk out of the nearest locker door. The locker belonged to someone named Higgins, judging by the dented nameplate that went spinning into the baseboard. "It’s a cascading discharge! If you step in the boundary layer, the feedback will jump through your nervous system and turn your marrow to ash! Call Professor Sterling! Call the Vanguard!"

"Professor Sterling is currently in the faculty lounge eating a pastrami sandwich," Henry said mildly. His voice had the flat, dry resonance of a man who had heard every variation of impending doom over the last thirty years and found all of them wanting. "And the Vanguard doesn't do indoor maintenance. Mud on their boots. Terrible habit of not wiping their feet."

Henry parked the cart precisely three feet from the outer ring of the lavender puddle. He took off his yellow rubber work gloves, inspected them for hairline cracks, pulled them back on with a sharp snap against his wrists, and reached for his tool of choice.

It wasn't an enchanted artifact. It had no silver runes inlaid along the ash-wood handle, nor was the head forged from starmetal by the dwarves of the lower crags. It was a standard-issue Continental commercial mop with a sixteen-ounce looped-end cotton head, purchased in bulk from an industrial supply warehouse outside of Newark. The handle had been rubbed smooth by Henry’s palms over the course of twelve years, developing a dark, oily patina where his left hand naturally gripped the wood.

Julian scrambled backward against the lockers, his heels kicking uselessly at the linoleum. "Are you deaf, old man? It’s unbound kinetic plasma! It has a half-life of four minutes and an unstable vector! You need magnetic dampeners! You can't just—"

Henry plunged the cotton head into the bucket.

The water inside wasn't tap water. It was a murky, brackish concoction brewed every morning at five-thirty in the basement: three parts gray-water, two scoops of coarse industrial salt, a splash of pine-scented floor stripper, and a handful of zinc shavings dropped into the warm mix to ground the ambient static. When the strings soaked through, Henry hoisted the mop into the mechanical wringer. He pulled down the iron lever with a sharp, practiced jerk.

Clack-chunk.

A stream of dirty gray water drained back into the reservoir, carrying with it a faint, crackling hiss as the salt absorbed the stray magnetic field clinging to the bucket's rim.

"The trouble with you kids," Henry remarked, stepping toward the center of the disaster, "is that you treat power like it’s an idea. You think because you read about it in a leather-bound book or saw a graph on a holographic projector, it’s supposed to behave like math. Power isn't math, Julian. It’s plumbing. If the pipe is narrow and the water is hot, you don't push harder. You let off the valve."

"Stay back!" Julian shrieked. A violent surge rippled through the boy's chest. His shoulder blade popped audibly as an involuntary spasm threw his arm forward. A jagged bolt of violet energy, dense as braided steel cable, lanced straight out from his palm toward Henry’s chest.

Henry didn't jump. He didn't deploy an energy shield, and he certainly didn't invoke any ancient lineages.

He simply rotated his hips, sliding his back foot two inches along the smooth tile to lock his balance, and swept the damp mop in a short, crisp upward arc.

The wet cotton met the plasma bolt at a forty-five-degree angle.

There was no explosion. Instead, there was a sound like a hot skillet dropped into dishwater—a violent, choking ssssst—as the looped threads caught the energy. The violet light didn't shatter; it snagged. Like a loose thread pulled from a cheap sweater, the lightning unspooled into the wet cotton fibers, its violent forward momentum caught, channeled, and dragged downward by the weight of the water and the deliberate sweep of Henry’s arms.

With a flick of his wrists that looked no more strenuous than flicking dust off a rug, Henry slapped the head of the mop flat against the floor.

The strike was clean. Thwack.

The energy grounded out. The lavender puddle shuddered, losing its strange reverse-suction, and collapsed into a mundane puddle of greasy, foul-smelling chemical runoff. A dull shockwave traveled through the concrete under the tile, rattling the lockers and causing Julian’s teeth to click together violently, but the light was gone. The smell of ozone instantly gave way to the sharp, chemical reek of pine and lye.

Julian sat frozen, his mouth hanging open, his arms twitching as the purple veins beneath his skin receded like worms diving back into the mud. He stared at the floor, then at the mop, and finally up at Henry’s lined, whiskered face.

"How... what did you..."

"You pinched your third meridian," Henry said, entirely unbothered, already working the mop back and forth across the floor in smooth figure-eight patterns. "You tried to draw from the base of your spine instead of letting the draw come from your thighs. It’s what happens when you try to look impressive for the girls in the combat lab. You get a knot. Knot builds pressure. Pressure blows the gasket."

"I... I’m an A-Rank candidate," Julian stammered, his fingers clawing at his chest. The boy's face was pale, his breathing ragged. Even though the discharge was over, his posture was warped; his left shoulder was hitched up toward his ear, frozen in a painful, rigid cramp that made his whole upper torso tremble. "My flow... it feels like it’s on fire. It won't reset."

Henry didn't stop mopping. He pushed the dirty liquid into a neat, contained pool, working with an economy of motion that made the task look effortless. Left, right, twist, drag.

"Stand up," Henry said.

"I can't. My core is locked. If I try to stand, the feedback loop will—"

"I said stand up, kid. You're sitting in the overflow, and that uniform takes three cycles in the heavy-duty wash to get the sulfur out."

Julian swallowed hard, braced his right palm against the locker, and struggled to his feet. His left arm hung uselessly, fingers locked in a rigid claw, small embers of residual energy spitting from under his fingernails. He looked less like a prodigy and more like a scrawny boy who had stuck a fork in a wall outlet.

Henry dragged the mop back toward the cart, set the head over the wringer, and pressed the lever down again. The water that ran out was dark violet and glowed faintly before neutralizing into the brine.

He didn't look at Julian as he turned the handle of the mop around in his grip, holding it like a pool cue. Before the boy could register the movement, Henry tapped the butt-end of the ash wood—the hard, rounded rubber cap at the top—directly into the hollow beneath Julian’s left collarbone.

It wasn't a hard strike, but it landed with the precise, ringing authority of a hammer hitting an anvil.

Julian let out a sharp, choked gasp. A sound like a plucked cello string vibrated through his ribcage. His shoulder dropped four inches with an audible thwump, and a tiny puff of harmless, gray smoke escaped between his lips. The rigid tension in his face collapsed, his fingers went slack, and he stumbled forward, catching himself on the edge of the janitor's cart.

"Breathe," Henry instructed, turning the mop back around and dropping the head into the clean section of the floor. "In through the nose, out through the mouth. Don't touch the brass valves on the cart. They're greased."

Julian took a deep, shuddering breath. The fire that had been threatening to tear his chest apart was gone, replaced by a dull, hollow ache, like an overstretched muscle that had finally been allowed to rest. He touched his collarbone, wide-eyed, then looked down at his own hand. He could flex his fingers again. The aura beneath his skin was quiet, smooth, and entirely docile.

"What did you do to my circuit?" Julian whispered, horrified and fascinated in equal measure. "That was... that was an internal displacement. Dr. Martin said only a master-level healer could realign an active kinetic core without surgery!"

"Dr. Martin has seven diplomas on his wall and doesn't know how to clean a grease trap," Henry said. "You had a kink in the hose. I tapped the fitting. The pressure equalized. It’s not magic, it’s physics. Now step to the dry side of the hall, please. You’re tracking soot onto the wax, and I just finished buffing this section on Tuesday."

Julian stepped sideways numbly, his shiny leather boots leaving small, powdery footprints on the clean linoleum. He watched as the old man methodically worked the mop across the ruined section of floor, clearing away the scorch marks with an ease that defied reason. The composite tiles, which should have been permanently pitted and melted by the localized thermal discharge, seemed to smooth out beneath the damp strings, the micro-fractures in the material settling down under the weight of the brine and the deliberate, rhythmic friction of the stroke.

Heavy footfalls echoed from the end of the hall.

Down the corridor came Dean Vance himself, his long gray robes billowing behind him like sailcloth. Flanking him were two junior instructors from the Department of Energy Dynamics, both holding silver-tipped staves that hummed with ready magic, their faces set in grim, dramatic masks.

"Julian!" the Dean boomed, his voice carrying the artificial resonance typical of administrative speech. "Hold firm! We are establishing an isolation ward! Do not attempt to channel!"

The Dean skidded to an undignified halt five paces from Henry’s bucket, his eyes darting from his nephew—who was standing quietly with his hands in his pockets—to the damp, lemon-scented floor, and finally to Henry, who was currently wringing out his mop for the third time.

The two junior instructors looked bewildered, their staves pointing awkwardly at an empty patch of clean linoleum.

"What happened to the localized distortion?" one of the instructors asked, tapping the side of his visor. "The sensors in the sub-floor indicated an unstable class-three buildup. The ambient charge was nearing critical mass."

"Spill," Henry said plainly, wiping a bead of sweat from his temple with the back of his wrist. "It’s cleared up. You might want to have the carpenter look at Higgins' locker, though. Door’s bent pretty bad."

Dean Vance adjusted his gold-rimmed spectacles, his gaze narrowing as he looked at Julian. "Julian, did you... did you suppress the surge yourself? Did the emergency focal techniques I taught you take hold?"

Julian opened his mouth. He looked at his uncle, whose face was full of hopeful pride—the kind of pride that paid for endowed chairs and secured lucrative internships with the national defense contractors. Then he looked at Henry.

The janitor wasn't looking at him. Henry was busy picking a small piece of charred rubber out of the mop's cotton fringe, his face completely devoid of expectation, judgment, or pride. He looked like a man whose shift ended at four o'clock and who still had three stairwells left to sweep before he could go home and boil a potato.

"I..." Julian swallowed. His voice was small, stripped of the bravado that usually carried it across the lecture halls. "No, Uncle. It... the circuit blew. I lost containment."

"Then who contained it?" Vance asked, looking around the empty hall as if expecting a senior hero to drop from the ventilation ducts.

"The bucket did," Julian said, pointing a trembling finger at the yellow plastic tub.

Dean Vance frowned deeply, his eyebrows knitting into a thick gray caterpillar. "Don't be absurd, boy. You’ve suffered an aura concussion. You're delirious. Arthur, take him down to the infirmary. Have them check his central pathway for micro-tears. If there’s scarring, he won't be able to participate in the midterms next week."

"He doesn't have any tears," Henry muttered, pushing the cart past the two instructors. "Just keep him off the cold drinks for an hour. Cold makes the vessels contract. It'll give him a headache behind the eyes."

"Mercer," Dean Vance said, his tone shifting into that specific, slightly patronizing cadence reserved for civil servants and mechanical contractors. "Thank you for attending to the mess so promptly. But please, leave the medical advice to the medical staff. You may return to your duties in the basement."

"Yes, sir," Henry said. "Floor’s wet, by the way. You ought to take the north stairs. Those soles you’re wearing don't have much tread on them."

The Dean didn't deign to reply. He turned on his heel, his heavy robes swirling around his ankles, and began herding Julian toward the elevators, muttering instructions under his breath about non-disclosure and the importance of reputation during recruitment season.

Henry stood by his cart, watching them go. He waited until the elevator doors slid shut with a soft, pneumatic hiss, then looked down at the floor beneath his feet.

There was still a small, stubborn spot near the baseboard where a tendril of Julian’s energy had burned through the top layer of polyurethane down into the structural substrate. It wasn't visible to the naked eye, but to Henry, it looked like a small, bright needle sticking straight up out of the floor, vibrating at a frequency that would, within three hours, start giving the girl who lived in room 412 a mild migraine.

Henry sighed, reached down to his cart, and pulled a small yellow plastic sign from the side rack. He set it squarely over the invisible needle, popping the legs open with a practiced snap.

The sign read: CAUTION: WET FLOOR.

He gave the top of the sign a firm downward pat, seating it firmly against the linoleum. The vibrating needle of violet energy hit the heavy, lead-lined rubber foot of the plastic sign and flattened out, dissipating harmlessly into the grounding mesh of the building's foundation.

"Prodigies," Henry muttered to himself, taking hold of the cart's handles. "All horse, no bridle."

He pushed the cart into the freight elevator, pressed the button for the basement, and leaned against the railing as the car began its slow, clanking descent. The peppermint was almost gone, leaving behind only the clean, sharp taste of mint and the faint, ever-present smell of damp string. Floor Four was clean. He still had the weight room in the athletic complex to mop, and the football team had been experimenting with kinetic impact enhancers again.

There would be sweat on the mats, and sweat mixed with kinetic residue always made the rubber peel if you didn't get to it before dinner.

The problem with S-Rank prodigies wasn’t their egos, though those were substantial enough to require structural reinforcement. The problem was their footwork.

Most students admitted to Aegis Academy arrived with an instinctive understanding of leverage. They knew that if you threw a punch carrying fifty tons of kinetic force, your back foot had better be anchored into the earth, or the equal-and-opposite reaction would send you skipping across the ceiling like a flat stone across a pond. But the high-tier enrollee—the kind whose parents endowed wings of the library and whose entrance exams were classified under the National Defense Secrets Act—invariably suffered from what Henry considered the dancer’s curse. They floated. They pivoted on their toes. They treated the laws of friction like suggestions from a junior bureaucrat.

And when an S-Rank pivoted on their toes while channeling two hundred thousand lumens of concentrated solar radiance, the resulting scuff mark was not something you could simply lift with a sponge.

The freight elevator clattered to a halt on the sub-basement level with a shudder that shook loose decades of rust from the counterweights. Henry pushed his cart out into the subterranean chill, where the hum of the academy’s primary power generators vibrated through the soles of his heavy leather work boots. Down here, beneath the marble pillars, the manicured courtyards, and the high-tech lecture halls, the building smelled of cold limestone, damp copper pipe, and old grease. It was the only part of the campus that smelled honest.

He parked his cart outside the heavy double doors of the auxiliary combat arena—a massive, vaulted chamber known officially as the Colosseum and unofficially as the Meat Grinder. Above the lintel, a red light was spinning with furious urgency, accompanied by the muffled, rhythmic thudding of shockwaves that felt like someone was using a pile driver on the other side of the concrete.

Henry checked his watch. It was twelve past eleven. His schedule clearly stated that the arena floor was reserved for deep-stripping between eleven and twelve-thirty, before the freshman tactical seminars began.

He didn't bother knocking. He produced a brass skeleton key from the heavy ring hooked to his belt loop, slipped it into the electronic bypass lock—which had been installed in 1982 and never properly upgraded—and turned it with a firm click. The heavy reinforced doors parted with a hiss of pneumatic pressure.

The air inside the arena was hot, dry, and tasted of powdered concrete.

In the center of the eighty-yard floor, floating precisely four feet above the sunken training pit, was Lady Katherine Vance. She was sixteen years old, possessed a lineage that traced back to three different Continental Champions, and was currently radiating enough hard-light energy to bleach the retinas of anyone not wearing polarized lenses. Katherine was an S-Rank, a fact that she communicated not through badges or uniform trims, but by the sheer, suffocating density of the gravitational wake that circled her like a flock of invisible birds.

Standing fifty yards away, looking battered and breathing through a broken nose, was Marcus Stone, a senior whose ability to manipulate earth had earned him a dozen regional trophies. Marcus was currently pinned against the safety barrier by four hovering lances of solid, crystalline light, his stone armor cracked down the middle like an overripe melon.

"Yield," Katherine said. Her voice didn't carry through the air; it resonated directly inside the inner ear, cold and clear as cut crystal. "You are overextending your perimeter, Stone. If I release the third vector, the thermal bloom will shatter your outer mantle and cause third-degree burns to your chest. Acknowledge the disparity."

Marcus spat a mouthful of dust, his jaw tight. "I’ve got... another three tons of granite under the floor plates. I can brace."

"You cannot brace against light," Katherine replied, raising one slender, white-gloved hand. The light coalesced around her fingers, hardening into an edge so sharp it hummed against the ambient air molecules. "Light has no mass to deflect. It merely occupies the space where you used to be."

Henry Mercer rolled his cart across the threshold, the small rubber wheels clicking steadily over the expansion joints in the floor.

Squeak. Clack. Squeak. Clack.

The noise was small, utterly lacking in dramatic majesty, yet it cut through the low-frequency drone of Katherine’s light-field like a rusty nail scratching across a blackboard.

Both students froze. Marcus looked over from his position against the wall, his dust-caked face slack with utter disbelief. Katherine’s brow furrowed, a tiny, elegant line appearing between her eyes, though she did not drop her elevation by a single inch.

"Arena is closed," Henry announced, his voice carrying clearly into the cavernous space. "Schedule says stripping and waxing at eleven. It’s twelve past. Out you go."

"Mercer?" Marcus croaked, his voice cracking. "What are you doing? We’re in the middle of a sanctioned rank-evaluation match! The automated lockdown engaged twenty minutes ago!"

"Lockdown’s on a relay," Henry said, not breaking his stride as he wheeled the cart toward the edge of the pit. "Relay’s tied to the sub-panel in the breaker room. If the breaker room gets hot, the relay trips. If the relay trips, the ventilation dampers close. Then the moisture builds up, and the wax doesn't cure right. Step down, Miss Vance. You’re baking the finish."

Katherine did not drop her hands. The crystalline lances hovering around Marcus remained steady, their tips vibrating with lethal intensity. She turned her head slowly, looking down at Henry with the detached pity one might reserve for a stray moth that had wandered into a furnace.

"This is an active combat environment, Janitor Mercer," she said, her tone level and dangerously quiet. "I am maintaining a localized high-frequency luminescence matrix. If you enter the perimeter without dampening armor, the residual radiation will dissolve the organic compounds in your clothing and blind you permanently. Retreat to the corridor."

Henry didn't retreat. He reached into the lower shelf of his cart and pulled out a long-handled floor scraper—a simple tool with a four-inch razor blade bolted to a heavy steel head.

"I told your father about this three years ago," Henry remarked, walking straight past the boundary line of the pit. "He had the same habit. Kept dropping down on his heels during his down-strokes. Leaves a black crescent right in the high-traffic zones. You’d think an S-Rank could afford sneakers that don't leave carbon trails, but no. Always the cheap soles with the high-friction treads."

Katherine’s eyes flashed with white fire. "Do not speak of my father as if—"

"He was sloppy with his left side, too," Henry said, stepping directly under the hover-radius of her right flank. "Always leaned into the wind. Made the floor uneven. Took me four coats of polyurethane to fix the depression he left back in the ninety-four semi-finals."

Katherine’s patience, never her most prominent virtue, evaporated. She didn't intend to harm the old man—Aegis students were strictly forbidden from hospitalizing the maintenance staff, mostly due to union disputes that Dean Vance preferred to avoid—but she needed him removed. With an effortless flick of her wrist, she directed a single lance of solid light downward.

It wasn't a lethal strike; it was an anchoring bolt, designed to plant itself into the floor three inches in front of Henry’s boots and emit a mild concussive shockwave that would knock him off his feet and slide him harmlessly back toward the doors.

The lance descended at the speed of a falling star.

Henry didn't look up. He didn't even shift his shoulders. As the bolt of solid, white-hot photon density dropped toward the concrete, he simply slid the steel blade of the floor scraper along the floor, angling the beveled edge upward at twenty-five degrees.

Ting.

The sound was shockingly delicate, like a silver spoon striking a crystal wine glass.

The razor-sharp edge of the scraper caught the apex of the descending light-bolt precisely where the photon density was gathered into a point. Instead of driving into the floor, the solid light struck the beveled carbon steel, caught the angle, and sheared sideways. With a high-pitched, metallic whine, the entire lance peeled away like a ribbon of wood coming off a carpenter’s plane, spinning harmlessly off into the corner of the room where it shattered against the reinforced concrete with a dull pop.

Katherine’s hover-field wobbled. A look of sharp, visceral confusion crossed her face. The light around her hands flickered, her core losing its harmonic resonance for a fraction of a second.

"What..." she breathed.

"You're using the cheap polish," Henry said, bending down to inspect a deep, black, glassy streak baked into the center of the training floor. It was roughly four feet long, curved like a sickle, and emitted a faint, high-pitched hum that smelled of scorched silicone. "Look at that. You came down hard on your left heel, didn't you? Blew the wax right down to the aggregate. That’s going to take sixty-grit sandpaper to level out."

"That is impossible," Katherine muttered, descending three feet until her boots almost touched the floor. Her pupils were contracted to pinpricks, staring at the steel scraper in Henry’s calloused hand. "The lance was solid state. Its surface tension was three thousand pounds per square inch. You cannot deflect solid light with a mild steel implement."

"Light isn't solid," Henry said, setting the edge of the scraper against the front of the black scuff mark. "Light’s just fast. If you hit it fast enough while it’s trying to stay still, it breaks just like everything else. You got dirt on the blade, too. Makes the line drag."

He placed the heel of his work boot against the back of the scraper’s head and kicked it forward with a sharp, rhythmic thunk.

The razor dug into the scorched composite. A curl of blackened, glassy material peeled up off the concrete, hissing as it separated from the floor. Beneath it, the underlying stone was white and raw, but the angry, vibrating heat that had been trapped in the surface dissipated instantly, exhaling a thin wisp of odorless steam.

Marcus Stone, still pinned against the barrier, let out a long, ragged groan as the remaining three lances holding him suddenly lost their cohesion, dissolving into glittering specks of dust that drifted down into the gravel. He slumped to his knees, clutching his ribs, staring at Henry Mercer as if the janitor had just sprouted an additional three heads.

"Mercer," Marcus gasped. "Did you... did you just parry an S-Rank construct with a paint scraper?"

"Floor scraper," Henry corrected, not looking up. "Paint scraper’s got a flexible blade. Useless for high-impact carbon. It’ll bend on you, and then you gouge the substrate. You want a stiff three-millimeter blade with a ground edge. Got it at the hardware store on Fourth Street. Three for twelve dollars."

Katherine Vance finally touched the ground, her boots clicking softly against the concrete. The glowing aura around her skin had receded, replaced by a rigid, icy tension that tightened her shoulders and narrowed her eyes. She was not accustomed to being ignored, nor was she accustomed to her techniques being categorized alongside hardware store inventory.

"Who are you?" she asked.

Henry finished peeling the third inch of the scuff mark, reached into his pocket for a dry rag, and wiped the blade clean before setting the tool back on his cart.

"I’m the fellow who has to finish this floor before the freshman seminar at one," he said. "Which means you two need to clear your gear out of the locker alcove. And Marcus, take some ice for that nose. If you let the cartilage set crooked, you’ll whistle when you breathe, and it drives the instructors crazy during meditation drills."

"My technique was flawless," Katherine said, her voice rising slightly, losing its polished, aristocratic veneer. "The alignment was mathematically perfect. My tutor, Master Kaelen, verified the vector calculations himself. There was no error in my balance."

Henry sighed, straightened his spine with a small series of dry clicks, and turned to look at her. He didn't look angry; he looked like a mechanic who had just been told by an eighteen-year-old that a car didn't need motor oil because the paint was shiny.

"Your tutor is seventy years old and sits in an armchair all day," Henry said. "He watches you on a screen. Screens don't show the floor."

"What does the floor have to do with the purity of the solar form?"

"Everything," Henry said. He tapped the toe of his boot against the concrete. "Where do you think the heat goes, girl? You draw the solar charge from the upper atmosphere, you run it through your lungs, and you drop it out of your hands. But you’re standing on concrete. Concrete’s got lime in it. Lime’s got water in it. When you drop that much heat down through your instep, the water in the slab boils. It creates a pocket of high-pressure steam right under your left boot. That’s why your heel slips. You’re not floating on power; you’re hydroplaning on your own steam."

Katherine stared at him, her lips slightly parted. Her fingers twitched toward her side, instinctively tracing the balance points she had practiced ten thousand times in the academy’s private dojos.

"A pocket... of steam?"

"Look at the mark," Henry said, pointing down with the handle of his mop. "See those little gray bubbles along the edge? That’s not residual plasma. That’s scorched sealer where the steam popped through the pores of the stone. Every time you throw a heavy lance, you lose three percent of your balance to the bubble. You think you’re missing Marcus because he’s dodging? He’s not dodging. He’s two hundred pounds of solid muscle and rock; he couldn't dodge a slow sheep. You’re missing because your left heel is sliding an eighth of an inch every time you plant."

Marcus blinked from the side of the arena, looking vaguely insulted despite his broken nose. "Hey. I have excellent agility for my weight class."

"You move like an old refrigerator," Henry told him without looking. "Be quiet and keep your hand on your ribs."

Katherine didn't speak. She knelt down—slowly, deliberately, ignoring the dust that clung to her pristine white breeches—and touched the edge of the scuff mark with two gloved fingers. She closed her eyes, extending a hairline thread of sensory light into the concrete.

Her breath hitched.

The micro-cavities were there. Tiny, microscopic fissures in the concrete aggregate, each one filled with superheated gas that had expanded violently beneath the sole of her boot during her final three strikes. It was an imperceptible shift, something no tactical instructor sitting in the observation booth could ever have spotted on the telemetry feeds. But at eighty yards, an eighth of an inch of heel-slip at the base translated to a four-inch drift at the tip of the lance.

She hadn't missed Marcus because of his defense. She had missed because she had been slipping on her own poorly grounded thermal backwash.

"The... the foundation wasn't prepared," she whispered, her voice barely audible over the hum of the ventilation fans.

"Foundation’s fine," Henry said, picking up his bucket and moving it to the center of the pit. "Standard three-thousand-pound mix with steel rebar reinforcement. Good floor. Honest floor. It’s not the concrete’s fault you’re treating it like an open field. This is an enclosed space, Miss Vance. You have to account for the grease, you have to account for the dust, and you definitely have to account for the steam. If you don't clean up your exhaust, your exhaust cleans you out."

Katherine rose slowly to her feet. The haughty, untouchable aura of the S-Rank had vanished, replaced by the profound, disorienting shock of a scholar who had just found an arithmetic error on the first page of her life’s work. She looked at Henry Mercer—really looked at him—taking in the faded blue canvas coat, the yellow gloves with the small patch on the thumb, the grease pencil tucked behind his left ear, and the gray hair clipped short and practical like an infantry recruit’s.

"Who taught you this?" she asked.

"The guy before me," Henry said, dipping his mop into the brackish solution. "Name was Gus. Smoked cigars. Hated kinetic users because their dust clung to the curtains. He used to say an S-Rank was just an A-Rank who hadn't hit a wet patch yet."

He wrung out the mop with a sharp, heavy clack-chunk.

"Now, are you going to stand there while I strip this section, or are you going to help Marcus down to the medical wing? Because if I have to mop around his boots, I’m going to leave a watermark, and the athletic director will complain to the Dean that the floor looks patchy during the televised qualifiers."

Katherine stood still for three seconds, her expression shifting through half a dozen different emotions before settling into a flat, rigid mask of high-born composure. She didn't say thank you. Prodigies of her station were not taught how to thank the cleaning staff; the grammar simply didn't exist in their dialect.

Instead, she walked over to Marcus, grabbed him by the elbow with enough force to make him wince, and hoisted him to his feet with an effortless display of leverage that didn't leave a single mark on the stone.

"Lean on your right side," she commanded Marcus coldly. "You are tracking granite aggregate across the boundary. It is inefficient."

Marcus grunted, leaning his weight against her shoulder as they began the long, slow walk toward the arena doors. Before she stepped out into the corridor, however, Katherine paused. She didn't look back, but her voice carried clearly across the vast, empty space.

"What is the mixture?" she asked.

Henry, already three strokes into his figure-eight pattern on the damaged floor, didn't stop moving.

"Two parts cold water," he said, the wet cotton slapping against the scuff mark with a satisfying, rhythmic cadence. "One part vinegar. Half a cup of baking soda if the scorch has sulfur in it. And stop dragging your left toe when you finish the sweep. It’s bad for the shoes, and it’s murder on the wax."

The heavy doors slid shut behind them, leaving only the sound of water, wood, and the steady, quiet work of someone who knew that no matter how high the prodigies flew, they all had to come down on the floor eventually.

Henry worked methodically, clearing the scuff mark until the concrete beneath was bare, clean, and cool to the touch. The micro-cavities in the stone settled under the brine, the trapped steam condensing back into harmless moisture that the cotton threads pulled up and locked away.

It was twenty to twelve. If he finished the first coat of sealer by twelve-fifteen, he’d have just enough time to eat his ham sandwich in the boiler room before the freshmen arrived with their clumsy, unshielded kinetic boots.

He looked down at the pale, damp square of stone he had just restored, then reached into his pocket for another peppermint.

"Amateurs," he muttered, and reached for the second bucket.