- Prologue

'The math isn't flat!' Theo broke in, feeling a surge of heat, like temper. She bit her lip; it wasn't Chelly's fault and yet—

'What d'ya mean, the math isn't flat?' Chelly was looking at her sideways, which he did when he thought you might be pushing a line.

'The whole point of the ven'Tura Tables—the reason they needed revision—is that space isn't flat—and it isn't static! And to describe what a non-static, dimensioned space is doing, you need a math that isn't flat! That's what Scholar Caylon did! She didn't so much revise the Tables, as she revised the math that described the relationships, and the changes—here!'

She held out her incomplete lace, shaking it in Chelly's bemused face. 'Look at this! See how the lines hook here—and here—and over here? And then look, if—oh, Chaos, it isn't done! But, anyway, if you—'

'Wait.' Chelly held up his hands again, his eyes moving from the lace to the screen. 'Wait. That's a star chart you're making.'

'Well . . .' Theo blinked at him, caught breathless by the tone of his voice. 'Sort of, I guess. I think of it as the shape of the relationships, but—that's what a star chart is, isn't it?'

'And this is the kid who needs to pull up her math scores?' Chelly might've been talking to himself. He reached beyond Theo and touched the control on the screen, locking the image again, then put a hand lightly on her wrist and exerted light pressure until she lowered the lace to her lap.

'Okay. Theo, listen up—I got a bunch of info to dump and I'm on a short watch. First thing is, I'm still going to be on the roster here, but mostly I'm going to be working real-time shifts at daily ops so I can get in enough time to be the official exchange student with Galtech over break. That means you're still gonna be in charge here. You been getting the Senior notices?'

She nodded.

'Good. Now, my bunk still being officially here in Erkes, that means you won't get another kid in to deal with right away—not 'til end of next term, when I fly out. I've got it set up that you're reporting to me—you tell Asu that, too. She gives you trouble, bump it to me.'

'I don't think she'll give me trouble,' Theo said. 'She's not dumb.'

'No, but she don't think,' Chelly answered, which she couldn't say wasn't so. 'Next thing I gotta tell you—that lace-making thing you're doing. The star map?'

Theo felt her face heat. 'It helps me think to—'

'No, no. Hear me say it first, Theo, then argue—right?' He didn't wait for her to nod, just kept on going. 'You need to talk to somebody—one of the advisors up—'

'I have an advisor,' Theo interrupted.

'Sure you do. And if you'll stop arguing for a second and let me tell it, you'll find out where I'm going with this.'

She bit her lip. 'Right,' she muttered.

'Yeah, that won't last,' Chelly said cryptically, pulling a pen and a card out of his pocket. He frowned at the card, flipped it over and wrote something on it. 'I'm giving you her name and office number. You go tomorrow, and you ask to get an intro hearing—seven minutes. What you want to tell her is just what you told me, about space not being stable, and what the revisions to the ven'Turas did, got that? Take your lace thing there with you and show it. Promise me. You're not going to say or explain anything else. Just that. Then you wait and you listen to what she's got to tell you, Theo, right? I'll send her an intro tonight when I get back, so she's expecting you—and you're not gonna make me sorry I did this.'

'No,' Theo said softly, feeling a lump in her chest. 'No, I won't, Chelly. Thanks.'

'Sheesh,' he said, shaking his head ruefully. 'I think I like it better when you're showing attitude.' He held out the card. 'Tomorrow, Theo. Skip lunch if you gotta.'

'Right,' she said, and slipped the card out of his fingers. 'But—'

The door clicked and there was Asu, nimbly avoiding Chelly's bags, her dark face glowing and a violet-and- green lei around her neck.

'We won!' she caroled. 'And Chelly is returned to us! The day is perfectly attuned!'

Chelly snorted.

'Close the door,' he said, though Asu had already turned to do so. 'I was just telling Theo that I'm temp- posted to daily ops. My official berth is here, but most times it'll just be the two of you. Theo's in charge, and she reports to me. We got it all set up, and I cleared it with my mentor and the dean of students.'

'Of course Theo is in charge,' Asu said, with the false sincerity that made Theo's teeth ache. 'Theo is very responsible.'

'Theo's First Bunk,' Chelly said dampeningly. 'Duty of privilege.'

'While Second Bunk is a social butterfly,' Asu answered, looking down at Theo's lap as she walked by. She shook her head. 'Still you sit with the needles? Theo, you must study if you—'

'We been over that,' Chelly interrupted forcefully. 'Now—' He looked up at the clock, which displayed official school time, and said something under his breath.

'Look, you two, I gotta jet. Theo, you move those bags into my room, then lock it down.'

'Why must you leave so soon?' Asu asked. 'Duty?'

'As a matter of fact. I'm on the Student Review Board. Vanz Mancha is challenging tonight and it's my watch.'

'Challenging?' Asu frowned. 'Why?'

'What's 'challenging'?' Theo said at the same time.