“You’re quite right, Inspector. Well, we mustn’t keep you. Good afternoon,” and Antony smiled pleasantly at him.

“Good afternoon, sir.”

“Good afternoon,” said Bill.

Antony stood looking after the Inspector as he strode off, silent for so long that Bill shook him by the arm at last, and asked him rather crossly what was the matter.

Antony shook his head slowly from side to side.

“I don’t know; really I don’t know. It’s too devilish what I keep thinking. He can’t be as cold-blooded as that.”

“Who?”

Without answering, Antony led the way back to the garden-seat on which they had been sitting. He sat there with his head in his hands.