She wrung her hands.

"I forgot!" she moaned. "Don't move the sofa while I am looking!"

There was a knock at the door. They both turned round. It was Groves' voice speaking. He had returned to the house and was waiting outside.

"Can I come in, madam?"

Fenella moved slowly towards the door and admitted him. Then Arnold, setting his teeth, rolled back the couch. A man was lying there, stretched at full length. His face was colorless except for a great blue bruise near his temple. Arnold stared at him for a moment with horrified eyes.

"My God!" he muttered.

There was a brief silence. Fenella looked across at Arnold.

"You know him!"

Arnold's first attempt at speech failed. When the words came they sounded choked. There was a horrible dry feeling in his throat.

"It is the man who looked in at the window that night," he whispered. "I saw him—only a few hours ago. It is the same man."