"Then it was no particular secret, the master-key and its hiding place?"
"Nossah."
"That will do. Let's have the prisoner again."
Campion remained perfectly cool and self-possessed. He readily agreed that he had been left alone in the pantry for a period of five minutes; it might even have been longer. He admitted that he had gone to the library door, and had knocked two or three times.
"That may have been what disturbed Eunice Trevor," whispered Warriner in my ear. "Just at that moment she must have been in the room with the despatch-box in her hand."
"You got no reply to your knock?" continued Judge Hendricks.
"No, sir."
"Did you know of the master-key?"
"Yes, sir. Marcus showed me its hiding place behind the clock, and we had been laughing at old Effingham's simplicity."
"Then it didn't occur to you that you might use the master-key?"