“Which is probably the reason why he tried to kill me to-night!”

“That’s beside the question, Mr. Cavanagh. He will believe you—which is the important point.”

“Very well. I have no idea what you have in mind but I am prepared to adopt any plan since I have none of my own. What shall I say?”

“Say that we are prepared to return the slipper—on conditions.”

“He will probably try to shoot me as I stand at the window.”

Dexter shrugged his shoulders.

“Got to risk it,” he drawled.

“And what are the conditions?”

“He must come right in here and discuss them! Guarantee him safe conduct and I don’t think he’ll hesitate. Anyway, if he does, just tell him that the slipper will be destroyed immediately!”

Without a word I turned on my heel and ascended the stairs.