"Well, I can frankly say that there's no such sentiment on my side. He'd have cut you down if I hadn't stopped him," said Merrihew, rubbing his swollen knuckles.

"It was measure for measure: I should have killed him had not you and O'Mally interfered."

"That's true. But what's back of all this muddle? Why was she masquerading as an opera singer, when fortune and place were under her hand?"

"She has promised to write."

"By George!"

"What now?"

"Didn't Giovanni tell us that he had friends in Fiesole, and that he was going to visit them?"

"Giovanni? I had forgotten. But what had my old valet against the prince?"

"Giovanni had a daughter," said Merrihew. "His knife left a scar on the man. The prince carried a long scar on his cheek. Two and two make four."

"But Giovanni had promised us."