"You'll need practical experience in farming — milking a cow, gathering eggs, vegetable gardening," he'd said, ticking them off on his fingers. "Your hair isn't long enough. You'll need to take cortixidils. You'll need to learn to spin, with a spindle, not a spinning wheel. The spinning wheel wasn't invented yet. And you'll need to learn to ride a horse."

He had stopped, finally coming to his senses. "Do you know what you need to learn?" he had said, watching her, earnestly bent over the list she was scribbling, her braids dangling over her shoulders. "How to treat open sores and infected wounds, how to prepare a child's body for burial, how to dig a grave. The mortality rate will still be worth a ten, even if Gilchrist somehow succeeds in getting the ranking changed. The average life expectancy in 1300 was thirty-eight. You have no business going there."

Kivrin had looked up, her pencil poised above the paper. "Where should I go to look at dead bodies?" she had said earnestly. "The morgue? Or should I ask Dr. Ahrens in Infirmary?"

"I told her she couldn't go," Dunworthy said, still staring unseeing at the glass, "but she wouldn't listen."

"I know," Mary said. "She wouldn't listen to me either."

Dunworthy sat down stiffly next to her. The rain and all that chasing after Basingame had aggravated his arthritis. He still had his overcoat on. He struggled out of it and unwound the muffler from around his neck.

"I wanted to cauterize her nose for her," Mary said. "I told her the smells of the fourteenth century could be completely incapacitating, that we're simply not used to excrement and bad meat and decomposition in this day and age. I told her nausea would interfere significantly with her ability to function."

"But she wouldn't listen," Dunworthy said.

"No."

"I tried to explain to her that the Middle Ages were dangerous and Gilchrist wasn't taking sufficient precautions, and she told me I was worrying over nothing."

"Perhaps we are," Mary said. "After all, it's Badri who's running the drop, not Gilchrist, and you said he'd abort if there was any problem."

"Yes," he said, watching Badri through the glass. He was typing again, one key at a time, his eyes on the screens. Badri was not only Balliol's best tech, but the University's. And he had run dozens of remotes.

"And Kivrin's well-prepared. You've tutored her, and I've spent the last month in Infirmary getting her physically ready. She's protected against cholera and typhoid and anything else that was extant in 1320, which, by the way, the plague you are so worried over wasn't. The Black Death didn't reach England until 1348. I've removed her appendix and augmented her immune system. I've given her full-spectrum antivirals and a short course in mediaeval medicine. And she's done a good deal of work on her own. She was studying medicinal herbs while she was in Infirmary."

"I know," Dunworthy said. She had spent the last Christmas vac memorizing masses in Latin and learning to weave and embroider, and he had taught her everything he could think of. But was it enough to protect her from being trampled by a horse, or raped by a drunken knight on his way home from the Crusades? They were still burning people at the stake in 1320. There was no inoculation to protect her from that or from someone seeing her come through and deciding she was a witch.

He looked back through the thin-glass. Latimer picked the trunk up for the third time and set it back down. Montoya looked at her watch again. The tech punched the keys and frowned.

"I should have refused to tutor her," he said. "I only did it to show Gilchrist up for the incompetent he is."

"Nonsense," Mary said. "You did it because she's Kivrin. She's you all over again — bright, resourceful, determined."

"I was never that foolhardy."

"Of course you were. I can remember a time when you couldn't wait to rush off to the London Blitz and have bombs dropped on your head. And I seem to remember a certain incident involving the old Bodleian — "

The prep room door flared open, and Kivrin and Gilchrist came into the room, Kivrin holding her long skirts up as she stepped over the scattered boxes. She was wearing the white rabbit-fur-lined cloak and the bright blue kirtle she had come to show him yesterday. She had told him the cloak was hand-woven. It looked like an old wool blanket someone had draped over her shoulders, and the kirtle's sleeves were too long. They nearly covered her hands. Her long, fair hair was held back by a fillet and fell loosely onto her shoulders. She still didn't look old enough to cross the street by herself.

Dunworthy stood up, ready to pound on the glass again as soon as she looked in his direction, but she stopped midway into the clutter, her face still half-averted from him, looked down at the marks on the floor, stepped forward a little, and arranged her dragging skirts around her.

Gilchrist went over to Badri, said something to him, and picked up a carryboard that was lying on top of the console. He began checking items off with a brisk poke of the light pen.

Kivrin said something to him and pointed at the brass-bound casket. Montoya straightened impatiently up from leaning over Badri's shoulder, and came over to where Kivrin was standing, shaking her head. Kivrin said something else, more firmly and Montoya knelt down and moved the trunk over next to the wagon.

Gilchrist checked another item off his list. He said something to Latimer, and Latimer went and got a flat metal box and handed it to Gilchrist. He said something to Kivrin, and she brought her flattened hands together in front of her chest. She bent her head over them and began speaking.

"Is he having her practice praying?" Dunworthy said. "That will be useful, since God's help may be the only help she gets on this practicum."

Mary blew her nose again. "They're checking the implant."

"What implant?"

"A special chip-corder so she can record her field work. Most of the contemps can't read or write, so I implanted an ear and an A-to-D in one wrist and a memory in the other. She activates it by pressing the pads of her palms together. When she's speaking into it, it looks like she's praying. The chips have a two-point-five gigabyte capacity, so she'll be able to record her observations for the full two and a half weeks."

"You should have implanted a locator as well so she could call for help."

Gilchrist was messing with the flat metal box. He shook his head and then moved Kivrin's folded hands up a little higher. The too-long sleeve fell back. Her hand was cut. A thin brown line of dried blood ran down the cut.

"Something's wrong," Dunworthy said, turning toward Mary. "She's hurt."

Kivrin was talking into her hands again. Gilchrist nodded. Kivrin looked at him, saw Dunworthy, and flashed him a delighted smile. Her temple was bloody, too. Her hair under the fillet was matted with it. Gilchrist looked up, saw Dunworthy, and hurried toward the thin-glass partition, looking irritated.

"She hasn't even gone yet, and they've already let her be injured!" Dunworthy pounded on the glass.

Gilchrist walked over to the wall panel, pressed a key, and then came over and stood in front of Dunworthy. "Mr. Dunworthy," he said. He nodded at Mary. "Dr. Ahrens. I'm so pleased you decided to come see Kivrin off." He put the faintest emphasis on the last three words, so that they sounded like a threat.

"What's happened to Kivrin?" Dunworthy said.

"Happened?" Gilchrist said, sounding surprised. "I don't know what you mean."

Kivrin had started over to the partition, holding up the skirt of her kirtle with a bloody hand. There was a reddish bruise on her cheek.

"I want to speak to her."

"I'm afraid there isn't time," Gilchrist said. "We have a schedule to keep to."

"I demand to speak to her."