The throne room doors stood twice the height of any door Katherine had ever walked through, black stone carved with the same violet-glowing symbols that had scattered them at the entrance, and behind them, waiting with a patience that had outlasted three hundred years and seven generals both, sat the demon queen.
She had not changed since Victor's blood completed what his incomplete ritual had started weeks before, in this world's reckoning, though the house understood by now that weeks and months moved strangely across the fold between one world and the other. She sat on a throne that seemed built from the same black stone as the castle's bones, tall and dark-eyed and utterly unbothered, dressed in something that still absorbed light rather than reflecting it, exactly as she had absorbed it the first night Sabrina Luxuria ever laid eyes on her in a candlelit hall three hundred years gone.
"Seven generals," she said, before any of them had spoken a word. "Three hundred years apiece, spent in the space of a single afternoon. I confess I did not expect quite this much efficiency from a house I have watched struggle against considerably smaller threats."
"You should have expected it," Thomas said. "We've had two years of practice losing people we love to things like you. We got efficient out of necessity."
"An admirable philosophy," the demon queen said. "I wonder if it will hold once necessity asks something considerably larger of you than it has so far."
"We've already lost Kristen to you today," Katherine said, stepping forward, the dark element restless under her skin. "Whatever else you're about to ask of this house, I'd think carefully about how much more efficiency you want to test."
The demon queen's dark eyes settled on Katherine with something that was not quite respect and not quite contempt, but sat closer to genuine interest than either.
"You've grown since the last time this house stood in front of me," she said. "I remember a girl who could barely hold her own element steady in a fight. I see something else standing here now."
"You'll see it up close in a minute," Katherine said, "if you keep talking instead of fighting."
"Patience has served me three hundred years," the demon queen said. "I find I've grown rather fond of it. Indulge me a moment longer. I would like to understand exactly what I'm facing before I decide how much of myself the occasion actually warrants."
Her gaze moved across the assembled house, unhurried, cataloguing — Niall, Fenix, Dean and Tierney still favoring the arm and the exhaustion the last chamber had cost them, Jasper and Courtney standing close, the particular stillness of two people who had walked through more grief that day than either had words for, and finally, at the group's center, KaSandra, the coat's gold-white seams burning steady and enormous.
"You," the demon queen said, to KaSandra. "You're the reason my seven are gone, aren't you. Not the house. You. I can feel what's settled into you from here, and I confess it's considerably more than I accounted for when Victor's blood first woke me."
"You should have accounted for it," KaSandra said. "You had three hundred years to plan for every version of this fight you could imagine. I don't think you ever imagined this one."
"No," the demon queen admitted, with something that might, in a kinder creature, have been respect. "I confess I did not."
"Then let's finish what you failed to account for," Thomas said, stepping forward beside KaSandra. "We didn't come here to talk. We came here to end what your patience started three hundred years ago."
"Everyone comes here to end something," the demon queen said, unbothered. "Very few of them succeed. But I confess this house has surprised me more than most, and I find, standing here, that I am almost curious to see what you'll do once I stop making this easy for you."
A door at the chamber's edge opened before either of them could say anything further, and two figures hurried through it — a man and a woman, both breathless, both dressed in the plain traveling clothes of people who had covered a great deal of ground very quickly, and Katherine recognized them the instant they cleared the doorway, though it had been weeks since either of them had last been seen at the house.
Mr. Tempest was broad and graying, the specific weathered look of a man who had spent most of his life doing careful, dangerous work and had the scars to account for it; Abigail Tempest, beside him, was smaller, sharper-eyed, the kind of person who noticed a room's exits before she noticed anything else in it. They had been gone from the house since the raid on Victor's facility weeks ago, chasing down the spell they'd stolen from the control room that night, and the house had assumed, more than once in the silence since, that the assumption might have been the last anyone heard of them.
"We found her," Mr. Tempest said, breathless, looking past the demon queen's throne to the assembled house with an urgency that cut through even the throne room's oppressive stillness. "We found where the spell actually needed to be used. We've been trying to reach you for three days."
"You're late," the demon queen observed, entirely unbothered. "Though I appreciate the theater of a last-minute arrival. It's traditional, in stories like this one."
"The spell isn't a weapon," Abigail said, ignoring her, crossing the chamber toward KaSandra with the specific urgency of someone who understood exactly how little time this conversation actually had. "We thought it was, when we stole it. We thought it was something that would simply end her, the way ending things usually works. It isn't. It's a binding — three parts, built to be cast together, by three specific kinds of power the file names but doesn't explain in any language we could fully translate until three days ago."
"Three parts," KaSandra said.
"Darkness," Abigail said, looking at Katherine. "Water, or something adjacent to it — a power that carries and cleanses in equal measure." She looked at Carlyle, standing near the back of the group. "And the third part, the binding thread itself, the thing that actually closes the spell once the other two have opened it." Her eyes settled, finally, on KaSandra, on the coat's gold-white seams still burning with everything the mountain had settled into her. "Cosmic. Old. Large enough to hold what the first two parts pull loose."
"Why us three specifically," Carlyle asked. "Out of the whole house."
"Because the file names the specific shape of power, not the specific person," Mr. Tempest said. "But there's only one of each shape standing in this room capable of doing what it asks. Dark element. Water that carries and cleanses. And whatever KaSandra Lucas has become since the last time any of us saw her. It has to be the three of you, or it doesn't work at all."
"How did you even find this," Thomas asked. "You've been gone weeks."
"We didn't find it," Abigail admitted. "Not quickly, anyway. The file was written in a hand none of the scholars we consulted could fully place, and it took us the better part of two weeks just to confirm it was genuine and not some trap Victor's facility had left behind to punish anyone who tried to use it. The last week was spent chasing down what little remained of the language it was written in — half-dead now, spoken by almost no one, and the handful of people who still remembered enough of it to help us were scattered across three different countries."
"We nearly didn't make it in time," Mr. Tempest said. "I want that understood plainly. If William hadn't opened this fold when he did, if the two of you hadn't walked this castle at exactly the pace you did — we'd have arrived to an empty throne room and a house that had already paid whatever price this fight demanded without the one tool that might have spared some of that cost."
The demon queen's expression, for the first time since the doors had opened, shifted — not fear, not yet, but the specific sharpening attention of someone recalculating an outcome she had believed already settled.
"You found my anchor's true weakness," she said, and there was something almost admiring in it, the tone of a queen assessing an opponent she had, until this exact moment, underestimated. "I confess I did not expect Victor's little theft to bear fruit quite this quickly. Very well." She rose from the throne, and the chamber's violet torches all guttered at once, as though the room itself understood what was coming. "Let's see if three of you together are worth more than three hundred years of patience."