"By Jove, sir, and I'm jolly glad they're not!" he said. "I shouldn't think a police officer's life is a very safe one among all those secret murder societies I've read about."

"Ah! what you read about them is often very much exaggerated," I assured him. "It is the vendetta which is such a stain upon the character of the modern Italian; and depend upon it this affair in Rannoch Wood is the outcome of some revenge or other—probably over a love affair."

"But you will assist us, sir?" he urged. "You know the Italian language, which will be of great advantage; besides, the victim was your servant."

"Be discreet," I said. "And in return I will do my very utmost to assist you in hunting down the assassin."

And thus we made our compact. Half-an-hour after I was driving in the dog-cart through the pouring rain up the hill out of gray old Dumfries to my uncle's house.

As I descended from the cart and gave it over to a groom, old Davis, the butler, came forward, saying in a low voice:

"There's Miss Leithcourt waiting to see you, Mr. Gordon. She's in the morning-room, and been there an hour. She asked me not to tell anyone else she's here, sir."

"Then my aunt has not seen her?" I exclaimed, scenting mystery in this unexpected visit.

"No, sir. She wishes to see you alone, sir."

I walked across the big hall and along the corridor to the room the old man had indicated.