Kivrin leaned closer, pulling his untied shift aside to look for typhoid's rose-colored rash. There wasn't any. The side of his neck seemed slightly swollen, but swollen lymph glands went with almost every infection. She pulled his sleeve up. There weren't any rose spots on his arm either, but his fingernails were a bluish-brown color, which meant not enough oxygen. And cyanosis was a symptom of cholera.

"Has he vomited or had loosening of his bowels?" she asked.

"Nay," Lady Imeyne said, smearing a greenish paste on a piece of stiff linen. "He has but eaten too much of sugars and spices, and it has fevered his blood."

It couldn't be cholera without vomiting, and at any rate the fever was too high. Perhaps it was her virus after all, but she hadn't felt any stomach pain, and her tongue hadn't swollen like that.

The clerk raised his hand and pushed the rag off his forehead and onto the pillow, and then let his arm fall back to his side. Kivrin picked the rag up. It was completely dry. And what besides a virus could cause that high a fever? She couldn't think of anything but typhoid.

"Has he bled from the nose?" she asked Roche.

"Nay," Rosemund said, stepping forward and taking the rag from Kivrin. "I have seen no sign of bleeding."

"Wet it with cold water but don't wring it out," Kivrin said. "Father Roche, help me to lift him."

Roche put his hands to the priest's shoulders and raised him up. There was no blood on the linen under his head.

Roche laid him gently back down. "Think you it is the typhoid fever?" he said, and there was something curious, almost hopeful in his tone.

"I know not," Kivrin said.

Rosemund handed Kivrin the rag. She had took Kivrin at her word. It was dripping with icy water.

Kivrin leaned forward and laid it across the clerk's forehead.

His arms came up suddenly, wildly, knocking the cloth backwards out of Kivrin's hand, and then he was sitting up, flailing at her with both his hands, kicking out with his feet. His fist caught her on the side of her leg, buckling her knees so that she almost toppled onto the bed.

"I'm sorry, I'm sorry," Kivrin said, trying to get her balance, trying to clutch at his hands. "I'm sorry."

His bloodshot eyes were wide open now, staring straight ahead. "Gloriam tuam," he bellowed, in a strange high voice that was almost a scream.

"I'm sorry," Kivrin said. She grabbed at his wrist, and his other arm shot out, striking her full in the chest.

"Requiem aeternum dona eis," he roared, rising up on his knees and then his feet to stand in the middle of the bed. "Et lux perpetua luceat eis."

Kivrin realized suddenly that he was trying to sing the mass for the dead.

Father Roche clutched at his shift, and he lashed out, kicking himself free, and then went on kicking, spinning around as if he were dancing.

"Miserere nobis."

He was too near the wall for them to reach him, hitting the timbers with his feet and flailing arms at every turn without even seeming to notice. "When he comes within reach, we must grab his ankles and knock him down," Kivrin said.

Father Roche nodded, out of breath. The others stood transfixed, not even trying to stop him, Imeyne still on her knees. Maisry pushed herself completely into the window, her hands over her ears and her eyes squeezed shut. Rosemund had retrieved the sopping rag and held it in her outstretched hand as if she thought Kivrin might try to lay it on his head again. Agnes was staring open-mouthed at the clerk's half-exposed body.

The clerk spun back toward them, his hands pawing at the ties on the front of his shift, trying to rip them free.

"Now," Kivrin said.

Father Roche and she reached for his ankles. The clerk went down on one knee, and then, flinging his arms out wide, burst free and launched himself off the high bed straight at Rosemund. She put her hands up, still holding the rag, and he hit her full in the chest.

"Miserere nobis," he said, and they went down together.

"Grab his arms before he hurts her," Kivrin said, but the clerk had stopped flailing. He lay atop Rosemund, motionless, his mouth almost touching hers, his arms limply out at his sides.

Father Roche took hold of the clerk's unresisting arm and rolled him off Rosemund. He flopped onto his side, breathing shallowly but no longer panting.

"Is he dead?" Agnes asked, and as if her voice had released the rest of them from a spell, they all moved forward, Lady Imeyne struggling to her feet, gripping the bedpost.

"Blackie died," Agnes said, clutching at her mother's skirts.

"He is not dead," Imeyne said, kneeling beside him, "but the fever in his blood has gone to the brain. It is often thus."

It's never thus, Kivrin thought. This isn't a symptom of any disease I've ever heard of. What could it be? Spinal meningitis? Epilepsy?

She bent down next to Rosemund. The girl lay rigidly on the floor, her eyes squeezed shut, her hands clenched into whitening fists. "Did he hurt you?" Kivrin asked.

Rosemund opened her eyes. "He pushed me down," she said, her voice quavering a little.

"Can you stand?" Kivrin asked.

Rosemund nodded, and Eliwys stepped forward, Agnes still clinging to her skirt. They helped her to her feet.

"My foot hurts," she said, leaning on her mother, but in a minute she was able to stand on it. "He…of a sudden…"

Eliwys supported her to the end of the bed and sat her down on the carved chest. Agnes clambered up next to her. "The bishop's clerk jumped on top of you," she said.

The clerk murmured something, and Rosemund looked fearfully at him. "Will he rise up again?" she asked Eliwys.

"Nay," Eliwys said, but she helped Rosemund up and led her to the door. "Take your sister down to the fire and sit with her," she told Agnes.

Agnes took hold of Rosemund's arm and led her out. "When the clerk dies, we will bury him in the churchyard," Kivrin could hear her say going down the stairs. "Like Blackie."

The clerk looked already dead, his eyes half-open and unseeing. Father Roche knelt next to him and hoisted him easily over his shoulder, the clerk's head and arms hanging limply down, the way Kivrin had carried Agnes home from the midnight mass. Kivrin hastily pulled the coverlet off the featherbed, and Roche eased him down onto the bed.

"We must draw the fever from the brain," Lady Imeyne said, returning to her poultice. "It is the spices that have fevered his brain."

"No," Kivrin whispered, looking at the priest. He lay on his back with his arms out at his sides, the palms up. The thin shift was ripped halfway down the front and had fallen completely off his left shoulder so his outstretched arm was exposed. Under the arm was a red swelling. "No," she breathed.

The swelling was bright red and nearly as large as an egg. High fever, swollen tongue, intoxication of the nervous system, buboes under the arms and in the groin.

Kivrin took a step back from the bed. "It can't be," she said. "It's something else." It had to be something else. A boil. Or an ulcer of some kind. She reached forward to pull the sleeve away from it.

The clerk's hands twitched. Roche stretched to grasp his wrists, pushing them down into the featherbed. The swelling was hard to the touch, and around it the skin was a mottled purplish- black.

"It can't be," she said. "It's only 1320."

"This will draw the fever out," Imeyne said. She stood up stiffly, holding the poultice out in front of her. "Pull his shift away from his body that I may lay on the poultice." She started toward the bed.

"No!" Kivrin said. She put her hands up to stop her. "Stay away! You mustn't touch him!"

"You speak wildly," Imeyne said. She looked at Roche. "It is naught but a stomach fever."

"It isn't a fever!" Kivrin said. She turned to Roche. "Let go of his hands and get away from him. It isn't a fever. It's the plague."