He got a chair, stood on the seat, and with his gloved hand pulled the buttons from the ends of the curtain rod.

“Look at this.” He turned to the radio, detached the control knobs, and laid them beside the ones he had removed from the curtain rod.

Ten minutes later Inspector Fox knocked on the drawing-room door and was admitted by Guy Tonks. Phillipa had got the fire going and the family was gathered round it. They looked as though they had not moved or spoken to one another for a long time.

It was Phillipa who spoke first to Fox. “Do you want one of us?” she asked.

“If you please, miss,” said Fox. “Inspector Alleyn would like to see Mr. Guy Tonks for a moment, if convenient.”

“I’ll come,” said Guy, and led the way to the study. At the door he paused. “Is he—my father—still—?”

“No, no, sir,” said Fox comfortably. “It’s all ship-shape in there again.”

With a lift of his chin Guy opened the door and went in, followed by Fox. Alleyn was alone, seated at the desk. He rose to his feet.

“You want to speak to me?” asked Guy.

“Yes, if I may. This has all been a great shock to you, of course. Won’t you sit down?”

Guy sat in the chair farthest away from the radio.

“What killed my father? Was it a stroke?”

“The doctors are not quite certain. There will have to be a post-mortem. ”

“Good God! And an inquest?”

“I’m afraid so.”

“Horrible!” said Guy violently. “What do they think was the matter? Why the devil do these quacks have to be so mysterious? What killed him?”

“They think an electric shock.”

“How did it happen?”

“We don’t know. It looks as if he got it from the wireless.”

“Surely that’s impossible. I thought they were foolproof.”

“I believe they are, if left to themselves.”

For a second undoubtedly Guy was startled. Then a look of relief came into his eyes. He seemed to relax all over.