“Nice of you to come, Mr. Stevens,” I said, and offered him a cigarette. While he was lighting it I studied him. He was all right. The faithful family retainer who could keep his mouth shut. He could be trusted, but the trouble would be to get him to talk. “What I have to say is in strict confidence,” I went on, sitting down. “I’ve been hired to investigate Miss Janet Crosby’s death. A certain party isn’t entirely satisfied she died of heart failure.”

He stiffened and sat bolt upright.

“Who is the certain party?” he asked. “Surely it is a little late for an investigation?”

“I’d rather not say at the moment,” I told him. “I agree it is late, but only within the past few days have certain facts come to light that make an investigation necessary. Do you think Janet Crosby died of heart failure?”

He hesitated.

“It’s not my business,” he said reluctantly. “Since you ask me, I admit it was a great shock to me. She seemed such an active young person. But Dr. Salzer assured me that in her case a sudden stoppage of an artery would cause heart failure without previous symptoms. All the same I found it hard to believe.”

“I wonder if you have any idea why Miss Crosby broke off her engagement with Douglas Sherrill?”

“I’m afraid I couldn’t tell you that without knowing who is making this investigation,” he said primly. “I have heard of your organization and I believe it is well spoken of, but I am not prepared to gossip about my late employer unless I know who I am dealing with.”

That was as far as we ever got.

There was a sudden frozen stillness in the cafe that made me look up sharply.