Forty or fifty of us gathered in the workshop, waiting to see the new arrival. Some sat on the stone worktables to get a good view, while a dozen or so students gathered on the iron catwalks in the rafters among Kilvin’s hanging lamps.
I saw Manet up there. He was hard to miss: three times older than any of the other students with his wild hair and grizzled beard. I headed up the stairs and made my way to his side. He smiled and clapped me on the shoulder.
“What are you doing here?” I asked. “I thought this was just for the greenwood who haven’t seen this stuff before.”
“I thought I’d play the dutiful mentor today” he shrugged. “Besides, this particular display is worth watching, if only for the expressions on everyone’s faces.”
Sitting atop one of the shop’s heavy worktables was a massive cylindrical container about four feet high and two feet across. The edges were sealed without any bulky welds, and the metal had a dull, burnished look that made me guess it was more than simple steel.
I let my gaze wander the room and was surprised to see Fela standing in the crowd, waiting for the demonstration to begin along with the rest of the students.
“I didn’t know Fela worked here,” I said to Manet.
Manet nodded. “Oh sure. What, two terms now?”
“I’m surprised I haven’t noticed,” I mused as I watched her talking to one of the other women in the crowd.
“So am I,” Manet said with a low, knowing chuckle. “But she’s not here very often. She sculpts and works with cut tile and glass. She’s here for the equipment, not the sygaldry.”
The belling tower struck the hour outside, and Kilvin looked around, marking the faces of everyone there. I didn’t doubt for a moment that he took note of exactly who was missing. “For several span we will have this in the shop,” he said simply, gesturing to the metal container that stood nearby. “Nearly ten gallons of a volatile transporting agent:
“He’s the only one that calls it that,” Manet said softly. “It’s bone-tar.”
“Bone-tar?”
He nodded. “It’s caustic. Spill it on your arm and it’ll eat through to the bone in about ten seconds.”
While everyone watched, Kilvin donned a thick leather glove and decanted about an ounce of dark liquid from the metal canister into a glass vial. “It is important to chill the vial prior to decanting, as the agent boils at room temperature.”
He quickly sealed off the vial and held it up for everyone to see. “The pressure cap is also essential, as the liquid is extremely volatile. As a gas it exhibits surface tension and viscosity, like mercury. It is heavier than air and does not dissipate. It coheres to itself.”
With no further preamble Kilvin tossed the vial into a nearby firewell, and there was the sharp, clear sound of breaking glass. From this height, I could see the firewell must have been cleaned out specially for this occasion. It was empty, just a shallow, circular pit of bare stone.
“It’s a shame he’s not more of a showman,” Manet said softly to me. “Elxa Dal could do this with a little more flair.”
The room was filled with a sharp crackling and hissing as the dark liquid warmed itself against the stone of the firewell and began to boil. From my high vantage, I could see a thick, oily smoke slowly filling the bottom of the well. It didn’t behave like fog or smoke at all. Its edges didn’t diffuse. It pooled, and hung together like a tiny, dark cloud.
Manet tapped me on the shoulder, and I looked at him just in time to avoid being blinded by the initial burst of flame as the cloud caught fire. There were dismayed noises from all around and I guessed most of the others had been caught unaware. Manet grinned at me and gave a knowing wink.
“Thanks,” I said and turned back to watch. Jagged flames danced across the surface of the fog, colored a bright sodium-red. The additional heat made the dark fog boil faster, and it swelled until the flames were licking toward the top of the waist-high lip of the firewell. Even from where I stood on the catwalk I could feel a gentle heat on my face.
“What the hell do you call that?” I asked him quietly. “Fire-fog?”
“We could,” he responded. “Kilvin would probably call it an atmospherically activated incendiary action.”
The fire flickered and died all at once, leaving the room filled with the acrid smell of hot stone.
“In addition to being highly corrosive,” Kilvin said, “in its gaseous state the reagent is flammable. Once it warms sufficienctly, it will burn on contact with air. The heat that this produces can cause a cascading exothermic reaction.”
“Cascading huge Goddamn fire,” Manet said.
“You’re better than a chorus,” I said softly, trying to keep a straight face.