“I appreciate your kindness very much, Lord Caterham,” said Anthony. “Especially,” he added, “when I’m such a suspicious character. But my staying here makes it easier for Battle.”

“In what way, sir?” asked the superintendent.

“It won’t be so difficult to keep an eye on me,” explained Anthony gently.

And by the momentary flicker of the superintendent’s eyelids he knew that his shot had gone home.