"The belly wound did not bleed much, so the heart wound must have preceded it. When the killer drove his knife into the puncture in the belly, it did not go in exactly the same direction. The smaller wound goes upward at a slight angle, as if the needle were driven in from the level of the killer's waist. The knife wound goes straight in. I had to dig below the skin and ribs to discover the needle wound."

"A needle could not have killed Alain."

"It could have been a poisoned dart. Alain's lips are blue. That is sometimes a sign of poison."

Simon heard a clumping of boots in the corridor. He hurried in from the galleria to find Cardinal Paulus de Verceuil, accompanied by two black-robed priests, striding toward the room where Alain lay.

"Now one of your knights has been killed!" de Verceuil boomed. He was dressed in a dark cerise tunic with particolored hose and forest-green boots with pointed toes. The only indications of his ecclesiastical office were the absence of a sword and the presence of the large jeweled cross hanging from his neck. A purple velvet cap adorned with a black feather was draped over his glossy black hair.

Simon told the cardinal he and Alain had been out late and had decided to stay at an inn rather than cross town during the dangerous night hours. Friar Mathieu came and stood beside him, greeting the two priests who had accompanied de Verceuil. They loftily eyed the old Franciscan's brown robe and responded with curt nods.

When Simon finished his recital, de Verceuil leaned forward, his small lower lip outthrust. "If you cannot protect your own knights, how can you protect the emissaries from Tartary?"

That was not a question but an assault, Simon decided, and required no answer. "We are doing everything we can to find his killer, Your Eminence."

"By God's footprints, I wish this were my bishopric!" de Verceuil exclaimed. "I would take a dozen men from that neighborhood and I would hang one man a day until the killer was found. I would have the man."

The door to the room where Alain lay swung open, and the stout podesta emerged. He stood silently glowering up at de Verceuil. Simon wondered whether d'Ucello had learned anything from looking at poor Alain's corpse.