“Oh, no,” laughed the young man. “As a matter of fact I was alone, though it was very kind of you to think of warning him. Well, what’s it all about, Inspector? Sit down, won’t you? Cigarette?”

“Well, thank you, sir,” The inspector helped himself to a cigarette from the other’s case and disposed his bulk in a comfortable leather-covered armchair. Roger followed suit.

As the young man sat down, the inspector edged his chair round so as to be able to look him directly in the face. “As I said, sir, I’m sorry to bother you, but it’s this matter of Mrs. Vane’s death I’m looking into.” He paused significantly.

Roger could have sworn that a look of apprehension flitted for an instant across the young man’s face, but his voice when he spoke after only a second’s hesitation was perfectly under control.

“Oh, yes?” he said easily (almost too easily, Roger felt). “And why have you come to me?”

The inspector’s hand shot out toward him, holding the piece of paper he had already drawn from his pocket. “To ask you to explain this, sir, if you please,” he said very much more brusquely.

Colin Woodthorpe looked at the paper curiously; then, as his brain took in the significance of the words written upon it he flushed deeply. “Where—how did you get hold of this?” he asked in a voice that was none too steady.

The inspector explained briefly that the original had been found among the rocks close to where the body was lying. “I want you to explain it, if you please, sir,” he concluded. “I need not point out to you its importance as far as we are concerned. You ask the lady to meet you, and on the very day you arrange she meets her death. If you kept the appointment, it seems to us that you ought to be able to shed some light on that death. I need hardly ask you whether you did keep it?”

The young man had recovered himself to some extent. He frowned and crossed his legs. “Look here, I don’t understand this. I thought Mrs. Vane’s death was an accident. They’ve had the inquest, and that was the verdict. Why are you ‘looking into it,’ as you say?”

“Well, sir,” the inspector returned in his usual cheerful tones, “I came here to ask questions, not to answer them. Still, I don’t mind answering that one. The fact of the matter is that we’re not at all sure that Mrs. Vane’s death was an accident.”