“But his sword must be good, surely.”

“God no,” said Aiglamene. “It was heavy oil amalgam, and it had a rubber tip. Lighter than Nav’s head.” (“Harsh!” said Gideon.) “No, lady; I’m looking for a blade in the style of his great-grandmother’s. And a knife—or a knuckle.”

“Powder,” said Harrowhark decidedly, “or chain.”

“A knife, I think, my lady,” her captain said again, with more gentle deference than Gideon had known the old woman possessed. “Knife or knuckle. The knife will be impossibly difficult to adjust to as it is. You fight in a crowd. A chain in close melee will be more of a danger to you than it will to anyone else.”

Gideon had long since decided that this was not a good place to be, and that the plans being hatched here were not plans she liked. She started to edge backward, toward the door, picking her path as lightly as possible. Suddenly there was Harrow, squeezing herself between two pillars and draping her arms above her head: long folds of black robe shook down from her arms, making her look like a roadblocking bat. “Oh, Nav, no,” she said calmly. “Not when you owe me.”

“Owe you—”

“Why, of course,” said Harrowhark. “It was your shuttle my cavalier ran off in.”

Gideon’s fist jacked out toward Harrow’s pointy nose. Less by design than accident, the other girl stumbled out of the way, half-tripping, dusting herself off and narrowing her eyes as she circled around the pillar. “If you’re going to start that again,” she said, “here.”

She reached down and hauled up one of the discarded blades. It was at least mildly hilarious to see Harrow have to heave with all the might of her, like, three muscles. Gideon took it while the necromancer rubbed fretfully at her wrists. “Try that,” she said.

Gideon unsheathed and examined the sword. Long, black pieces of crooked metal formed a decaying basket hilt. A terrifically worn black pommel seal depicted the Tomb wrapped in chains, the sign of the Ninth. The blade itself was notched and cracked. “Only way this kills someone is with lockjaw,” she said. “How are you going to get Ortus back, anyway?”

Did Harrow look momentarily troubled? “We’re not.”

“Aiglamene’s too old for this.”

“And that is why you, Griddle,” said the Lady, “are to act as cavalier primary of the House of the Ninth. You will accompany me to the First House as I study to become a Lyctor. You’ll be my personal guard and companion, dutiful and loyal, and uphold the sacred name of this House and its people.”

Once Gideon had stopped laughing, leaning against the icy pillar and beating on it with her fist, she had to breathe long and hard in order to not crack up again. The beleaguered grimace on Aiglamene’s hard-carved face had deepened into an outright sense of siege. “Whoo,” she managed, scrubbing away tears of mirth. “Oh damn. Give me a moment. Okay—like hell I will, Nonagesimus.”

Harrow ducked out from behind her pillar and she walked toward Gideon, hands still clasped together. Her face held the beatific, fire-white expression she’d had the day she told Gideon she was going off-planet: an unwavering resolve almost like joy. She stopped in front of the other girl and looked up at her, shaking the hood from her dark head, and she closed her eyes into slits. “Come on, Nav,” she said, and her voice was alight. “This is your chance. This is your opportunity to come into glory. Follow me through this, and you can go anywhere. House cavaliers can get any Cohort position they like. Do this for me and I won’t just set you free, I’ll set you free with a fortune, with a commission, with anything you want.”

This nettled her. “You don’t own me.”

“Oh, Griddle, but I do,” said Harrowhark. “You’re bound to the Locked Tomb … and at the end of the night, the Locked Tomb is me. The nominated Hands are to enter the First House, Nav; their names will be written in history as the new Imperial saints. Nothing like this has ever happened before, and it may never happen again. Nav, I am going to be a Lyctor.”

“‘Hello, I’m the woman who helped Harrowhark Nonagesimus’s fascist rise to power,’” said Gideon to nobody in particular. “‘Yes, the universe sucks now. I knew this going in. Also, she betrayed me afterward and now my body has been shot into the sun.’” Harrow came too close, and Gideon did what she had never done in the past: she raised the rusted sword so that its naked point was level with the other girl’s forehead. The necromancer adept did not flinch, just made her black-smeared mouth a mocking moue of shock. “I—will never—trust you. Your promises mean nothing. You’ve got nothing to give me. I know what you’d do, given half a chance.”

Harrow’s dark eyes were on Gideon’s, past the blade pointed at her skull. “Oh, I have hurt your heart,” she said.

Gideon kept it absolutely level. “I boohooed for hours.”

“It won’t be the last time I make you weep.”

Aiglamene’s voice rattled out: “Put that damn thing down. I can’t bear to see you hold it with that grip.” And, shocking Gideon: “Consider this offer, Nav.”

Gideon peered around Harrow’s shoulder, letting the blade drop, trashing the miserable thing scabbardless in the nearest niche. “Captain, please don’t be a proponent of this horseshit idea.”

“It’s the best idea we have. Nav,” said her teacher, “our Lady is going off-planet. That’s the long and short of it. You can stay here—in the House you hate—or go attain your liberty—in service to the House you hate. This is your one chance to leave, and to gain your freedom cleanly.”

Harrowhark opened her mouth to say something, but surprising Gideon further, Aiglamene silenced her with a gesture. The crappy swords were set aside with care, and the old woman pulled her bockety leg out from underneath her and leant the good one against the catacomb wall, pushing hard to stand with a clank of mail and bone disease. “You care nothing for the Ninth. That’s fine. This is your chance to prove yourself.”

“I’m not helping Nonagesimus become a Lyctor. She’ll make me into boots.”

“I have condemned your escapes,” said Aiglamene. “They were graceless and feeble. But.” She turned to the other girl. “With all due respect, you’ve dealt her too ill, my lady. I hate this idea. If I were ten years younger I would beg you to condescend to take me. But you won’t vouchsafe her, and so I must.”

“Must you?” said Harrow. There was a curious softness in her voice. Her black gaze was searching for something in the captain of her guard, and she did not seem to be finding it.

“I must,” said Aiglamene. “You’ll be leaving me and Crux in charge of the House. If I vouchsafe the freedom of Gideon Nav and it is not given to her, then—begging pardon for my ingratitude—it is a betrayal of myself, who is your retainer and was your mother’s retainer.”

Harrowhark said nothing. She wore a thin, pensive expression. Gideon wasn’t fooled: this look usually betokened Harrow’s brain percolating outrageous nastiness. But Gideon couldn’t think straight. A horrible dark-red heat was travelling up her neck and she knew it would go right to her cheeks if she let it, so she pulled the hood up over her head and said not a word, and couldn’t look at her sword-master at all.