I got it out at last and stroked it lovingly. "I can't start before I'm ready," I said. "Rather neat bit of wood—what? Chose it myself at Bow Street. I take a 13½-ounce racquet, you know."

"You seem," he said, "to have given up caring whether I am a German spy or not."

"Your mistake," I said; "I was merely gaining time to size you up properly. Better take your pince-nez off. Broken glass is such a nuisance, don't you think?"

He ignored the friendly hint. "As a matter of fact," he said, "I am partly German."

"Show me the German part," I said, gripping the corrugations of my truncheon more tightly. "I'm a little pressed for time."

"And partly French," he went on.

"That's rather awkward," I said.

"And I was born in Russia."

"Worse and worse," I said.

"And spent practically the first twenty years of my life in Italy."