He had a knife. Cavolini's right arm began to twitch, and his slack facial muscles came to life for the first time, taking on a grimace of pain. It still hurts. Please help me. The bioethicist glanced calmly at some figures on the display screen, but declined to intervene. Any effective anesthetic would damp down neural activity too much to allow the interrogation to continue; it was all or nothing, abort or proceed.

Lukowski said gently, "The nurse is getting some painkillers. Hang in there, man, it won't be long. But tell me: who had the knife?" The faces of both of them were glistening with sweat now; Lukowski's arm was scarlet up to the elbow. I thought: If you found someone dying on the pavement in a pool of blood, you'd ask the same questions, wouldn't you? And tell the same reassuring lies? "Who was it, Danny?"

My brother.

"Your brother had the knife?"

No he didn't. I can't remember what happened. Ask me later. My head's too fuzzy now.

"Why did you say it was your brother? Was it him, or wasn't it?"

Of course it wasn't him. Don't tell anyone I said that. I'll be all right if you stop confusing me. Can I have the painkillers now? Please?

His face flowed and froze, flowed and froze, like a sequence of masks, making his suffering seem stylized, abstract. He began to move his head back and forth; weakly at first, then with manic speed and energy. I assumed he was having some kind of seizure: the revival drugs were over-stimulating some damaged neural pathway.

Then he reached up with his right hand and tore away the blindfold.