Jeannemary said, “He’s not in here. Let’s go somewhere else.”
They left the bright antiseptic room of Sanitiser. The lights went off with rhythmic boom, boom, booms as Gideon pressed down on the touchpad that still held little black whorls of Harrow’s blood, and they spilled out into the corridor. Sweat was openly dripping down the sides of Isaac’s temples now. His cavalier threw her arm over his shoulder, and he buried his hot wet face in her shoulder. Gideon again found this difficult to look at.
“Let’s bounce,” said Jeannemary.
As they turned the corner to where the Sanitiser corridor met the main artery, the rhythmic boom, boom, boom of lights shutting down caught up with them. The lights in the grille beneath them winked out of existence, and so did the dully glowing panels above, and so did the bright lights ringing the big square room ahead. They were left in total darkness, every nerve in Gideon’s body singing with fear. She ripped her glasses off to try to cope.
The necromancer was close to hyperventilating. His cavalier kept saying, with eerie calm: “Your wards aren’t tripped. It’s just the lights. Don’t freak out.”
“The wards…”
“Aren’t tripped. You’re good with wards. There’s nobody down here.”
One of the motion-sensor lights struggled back on behind them, a short way down the passage. A ceiling panel threw the metal siding into sharp white relief. It was daubed with words that had not been there a few seconds before, written in blood so fresh and red that there were little drips:
DEATH TO THE FOURTH HOUSE
The light flickered off. After no sleep—after days of threat and grief and panic that would have floored a man twice his age—Isaac lost it completely. With a strangled cry he flared in a halo of blue and green. Jeannemary yelled, “Isaac, behind me—” but he was sizzling with light, too bright to see by, a sun and not a person. Gideon heard him flee into the room ahead of them, blinded by the running aurora.
When her eyes cleared, Gideon was confronted with the biggest skeletal construct she had ever seen. The room was full of it, bluely aflame with Isaac’s light, a massed hallucination of bones. It was bigger by far than the one in Response, bigger than anything recorded in a Ninth history textbook. It had assembled itself into the room by no visible means, since it never could have fit through one of the doors. It was just simply, suddenly there, like a nightmare—a squatting, vertiginous hulk; a nonsense of bones feathering into long, spidery legs, leaning back on them fearfully and daintily; trailing jellyfish stingers made up of millions and millions of teeth all set into each other like a jigsaw. It shivered its stingers, then stiffened all of them at once with a sound like a cracking whip. There was so much of it.
It was cringing away from Isaac Tettares, who had planted his feet wide in line with his hips and was screaming soundlessly in fear and anger. He had thrown his arms out wide as though in embrace, and there was a sodium explosion in the air between him and the room-cramping construct. It left a suction, like he was trying to drag something out of the unwilling creature. Bright blue points of contact appeared on it, and the mass of bone and energy began to lose form, drifting instead toward Isaac, tiny bones plinking down to the grille like rain.
Gideon woke from her confusion, drew her sword and ran. With a gauntleted hand she picked up the nearest stinger and yanked it, then smashed the back of her heavy glove into another, finding a naked shank of legbone and punching it as hard as she could. One of the tendrils of teeth wrapped around her ankle, but she found purchase and stamped it into a corona of molars. Gideon looked behind her to see Jeannemary whipped off her feet by another tendril, lashing out wildly with her feet and her blades. Everywhere she looked was filled with construct: everywhere Isaac’s light touched there was a veritable cancer of bone and tooth.
Gideon bellowed, voice deadened by a thousand million frigging bones:
“Run! Don’t fight it, RUN—”
But the enormous thing slapped another couple dozen tendrils down on the grille, sinuous, and flexed into long sharp wires. Isaac’s blue-green fire fell upon a giant trunk of bone, a skull terrifically mangled into the thing’s only coherent core: a simulacrum of a face with closed eyes and