"The word code for the safe to-day was Magenta, I believe?" the Duke asked.
"That is correct, sir," I answered.
"And it was known to whom?"
"To Lord Chelsford, yourself, Colonel Ray, and myself," I answered.
"And what was there in the safe?" the Duke asked.
"The plans for the Guildford Camp, the new map of Surrey pricked for fortifications, and one or two transport schemes," I answered.
"Exactly! Those documents are now all missing."
I strode to the safe and looked in. It was as the Duke had said. The safe was practically empty.
"They were there this morning," I said. "It was arranged that I should examine the contents of the safe the first thing, and take any finished work over to the War Office. Do you remember who has been in the room to-day, sir?"
"Yourself, myself, and the woman whom you brought here an hour or so ago."