“Go ahead,” I said. “What happened?”

She said, “I was very close to the apartment when he came past in a taxicab. He got out of the cab and ran up the three steps to the street door and rang the bell of my apartment.”

“Are you certain it was your apartment?”

“Well, reasonably certain. I could see the position of his finger. I couldn’t see the exact button he was touching, but it was — yes, it must have been my bell he was ringing.”

“And what happened after he found you weren’t home?”

“I don’t know.”

“Why? Didn’t he turn back and see you coming along the sidewalk just a step or two behind him?”

“No.”

“What did he do?”

“He went in.”