The door opened and a girl came into the room. She was tall, slim and dark, with an attractive boyish face, and a very determined manner. This was Lady Eileen Brent, commonly known as Bundle, Lord Caterham’s eldest daughter. She nodded to the others, and addressed her father directly.

“I’ve got him,” she announced.

For a moment the inspector was on the point of starting forward under the impression that the young lady had captured the murderer red-handed, but almost immediately he realized that her meaning was quite different.

Lord Caterham uttered a sigh of relief.

“That’s a good job. What did he say?”

“He’s coming over at once. We are to ‘use the utmost discretion.’ ”

Her father made a sound of annoyance.