She was puzzled. "Tuesday—? I forget, why?"

"Try to think, dear," he urged.

"I was dining at home. Father was out, I think. I'm not sure. I went to a concert after with the Paynters. Yes, that was it—why?"

"You were dining with Moropulos and I."

She stared at him. "I don't understand."

"Moropulos is in trouble with Steppe. He has been drinking and some of Steppe's watchers have reported that he made an ass of himself, gave away some business secrets, and that sort of thing. Steppe is naturally furious and Moropulos wants to prove an alibi."

"That he was dining with us, how absurd! Where?"

"In my flat."

She surveyed him steadily. He was unusually excited. She had never seen Ronnie like that before. Nothing ever ruffled him.

"Of course, I can't tell such a lie, even to save your friend," she said. "I was dining at home, although father has such a wretched memory that he won't be sure whether I was here or not."