The door opened.

"Mr. Campbell, my lord."

"Guy," exclaimed Cyril. "You have arrived in the nick of time. I have confessed."

"Confessed what?" Campbell cast a bewildered look at the inspector.

"His Lordship says that he hired an assassin to murder Lord Wilmersley."

"What rot! You don't believe him, I hope?"

"He shall believe me," cried Cyril. "I alone am responsible for Wilmersley's death. The person who actually fired the shot was nothing but my tool. I will never betray him, never!"

"Honour among murderers, I see! Really, Cyril, you are too ridiculous," exclaimed Campbell.

Suddenly he caught sight of Amy, cowering in the shadow of the curtain.

"Who is this lady?" he asked.