The Dust on the Floor

The smell of boiled lye and burned vitriol lingers in the stone. It clings to my hair, gets behind my teeth, burns the back of my throat every time I draw breath.

I wipe the cedar table with a wet rag.

The wood is scorched black along the eastern grain where the acid flask splashed. Beneath the soot, the grain is eaten raw, pitted like diseased bone. Three paces away, the heavy iron bed sits empty, its stained linen stripped down to the bare mattress straps.

Siku-uay is gone.

They moved him an hour before dawn, while the stairwell still smoked from my chemical line. Four Wardens in sealed leather cloaks carried the stretcher out on iron poles, their boots crunching on broken pottery and dried blood. Runa-uay walked beside them. He did not look back into the sickroom. He only checked the straps on his broadsword, barked an order to seal the courtyard gate, and vanished into the fog.

Now dawn bleeds gray through the high slit window.

I set the rag down and pull the small wooden rack toward me.

Three glass drams sit in the carved grooves. Only three.

I lift the first vial to the morning light. The liquid inside is clear, amber-tinted, viscous as melted resin. Cloud-fungus oil titrated with sulfur spirit and willow buffer. I unstopper the cork, dip the tip of a glass rod into the solution, and touch it to a smear of dried infected bile on a slate tile.

The black bile fizzes once, turns pale gray, and stops expanding.

The potency holds. But two drams are already spent on Siku-uay's post-drainage seizures. What remains in these three vials is enough for four sublingual doses.

Two days.

If I cannot secure fresh alpine cloud-fungus and cinnabar from the High Spire dispensary, my patient will convulse until his brain stem splits. And when the Councilor dies, my immunity dies with him.

I set the vial down into the groove with a quiet click.

Beside the rack lies my five-inch Citadel scalpel. The tempered steel blade is clean, wiped free of the husk's blood I spilled at the door panel. Runa-uay gave it to me. A weapon conceded to keep a captive useful. I pick it up, test the edge against the pad of my thumb, and slide it into the leather sheath sewn inside my sleeve.

The heavy oak door groans on its iron hinges.

I do not jump. I keep my hands resting flat on the table, thumbs touching the cool wood.

Sami-uay steps into the sickroom.

He looks like he took a beating from a stone crusher. His left collarbone is bound tight in coarse linen, fresh blood seeping through the second wrap. A jagged chemical burn runs from his jawline down to the collar of his Warden tunic, blistered yellow where my vitriol mist caught him on the landing.

He stops three paces from the table. Exactly three.

"You are still breathing," I say.

"The physician at the lower gate had a dull needle," Sami-uay says. His voice sounds like gravel dragged across iron. "He stitched the shoulder while the thread was dry."

"He tied the knot on the wrong side of the wound," I tell him, pointing my chin at the bunched linen. "It will pull the muscle every time you draw your sword. Take it off and let me reseat the suture."

"No."

He reaches inside his heavy leather brigandine with his good right arm. He pulls out a folded scroll of thick vellum, sealed with dark blue wax.

"From the High Spire," he says.

He places the parchment on the scorched table. He does not push it toward me. He just leaves it there, equidistant between us, a clean rectangle of Upper City authority sitting on charred wood.

"A summons," I say.

"A transfer of jurisdiction," he corrects. "You are ordered to present yourself at the Third Antechamber before midday bell."

I look at the wax seal. The stamp bears the twin towers of the High Defense Ministry. Not Runa-uay's personal hound mark.

"Where is Runa-uay?" I ask.

"In the Spire."

"And Siku-uay?"

"Under guard."

"That is not an answer, Scab." I lean forward, planting my palms against the cedar. "I vented two ounces of toxic fluid from that man's occipital notch five hours ago. If his fever spikes past noon without another half-dram of cloud-fungus buffer, his lymphatic system will collapse. Is he lucid?"

Sami-uay keeps his chin level. His eyes are bloodshot, fixed on the stone wall behind my head.

"The Councilor is under the care of the High Spire apothecary guild."

A dry laugh slips out of my throat. "The apothecary guild? Those pampered butchers who treat rot with rosewater and silver bleeding cups? They will have him in a seizure by sundown."

"They have imperial mandates," Sami-uay says flatly. "And twenty alchemists."

"They do not have the formula."

"They have his blood samples. They have your spent distillation flasks from the hearth."

Cold anger settles beneath my ribs. It is sharp and clean, cutting through the fatigue that has weighed on my limbs since the breach.

They took my residue.

While the smoke was still thick in the stairwell, someone came through this room with scrapers and collection phials. They gathered the precipitate from my boiling pans. They want to mass-produce my suppressant without the street healer who brewed it.

"Runa-uay agreed to a partnership," I say, keeping my tone level. "He promised cinnabar at dawn."

"The Commander follows the council's directive when the council convenes," Sami-uay replies.

"Does he?"

Sami-uay's jaw tightens. He shifts his weight, his left boot scuffing against the flagstones.

The sound is soft. A gritty, muffled scrape.

My gaze drops to his feet.

His knee-high leather boots are caked in dried grime. That is normal for a Warden after a night of street fighting. But around the brass buckles and along the deep welt of the left sole, there is a fine, greasy coating of pale ash.

Not the gray limestone dust of the Upper Spire.

Not the white quicklime powder I threw across the stairwell.

This dust has a dull violet tint under the morning light. It is greasy, clinging in thick oily clumps to the stitching, smelling faintly of sulfur and wet coal.

Deep Wards ash.

The unique volcanic sediment from the sealed vents five hundred feet below the southern aqueduct. The quarantine line does not touch that depth. Nobody goes down there unless they are looking for the source of the rot itself, or harvesting live spores from the primary fissure.

Sami-uay was not just at the High Spire dispensary this morning.

He was in the deep trenches.

I lift my chin, watching him carefully. "You took the southern conduit route when you chased Qari-illa."

Sami-uay does not blink. "The sortie is classified by the Ministry."

"Qari-illa was coughing blood when he fled down the stairwell," I say. "His lungs are melted from my vitriol wash. If you caught him in the vents, he is already dead. If you did not catch him, you found what he left behind."

"Pack your instruments, healer," Sami-uay says. His voice drops lower, losing its bureaucratic veneer for a fraction of a second. "Two Wardens are waiting at the bottom of the tower. If you are not in the courtyard when the bell strikes, they will carry you."

"Let them try," I say softly. "They saw what happened to the husks on these stairs."

Sami-uay looks at the charred table, then at the empty bed.

"The Commander did not order your execution," he murmurs, almost too quiet to hear. "If he wanted you in a ditch, you would have been dumped in the canal before first light. Take the parchment. Walk into the Spire on your own feet. And do not mention the vents."

He turns on his heel.

As he swings toward the door, another flake of greasy violet ash falls from his boot heel, settling onto the clean flagstone.

I wait until his heavy footsteps fade down the spiral staircase.

Then I kneel on the floor, wet the tip of my forefinger, and press it against the violet dust.

I bring it to my nose.

Sulfur. Bitumen. And the unmistakable bitter tang of wild cloud-fungus spores harvested directly from live host tissue.

They did not go to the Spire to beg the Council for cinnabar.

Runa-uay went into the Deep Wards to take the raw contagion at its source.

I stand up, wipe my finger on my apron, and slide the three vials of suppressant into the inner pocket of my cloak beside the Citadel scalpel.

They think they can duplicate my formula with twenty Upper City alchemists and a handful of scraped residue. They think they can cut me out of the cure now that Siku-uay is breathing.

They are going to blow up half the Spire before noon.

I pick up the vellum summons, break the blue wax with my thumbnail, and walk toward the door.