He examined the broken pane and picked up the bullet from the table.

“It’s a rifle-ball, I should say.”

The bullet was half-flattened by its contact with the wall. It was a cartridge ball of large caliber and might have been fired from either rifle or pistol.

“It’s very unusual, sir!” I wheeled upon him angrily and found him fumbling with the bit of metal, a troubled look in his face. He at once continued, as though anxious to allay my fears. “Quite accidental, most likely. Probably boys on the lake are shooting at ducks.”

I laughed out so suddenly that Bates started back in alarm.

“You idiot!” I roared, seizing him by the collar with both hands and shaking him fiercely. “You fool! Do the people around here shoot ducks at night? Do they shoot water-fowl with elephant guns and fire at people through windows just for fun?”

I threw him back against the table so that it leaped away from him, and he fell prone on the floor.

“Get up!” I commanded, “and fetch a lantern.”

He said nothing, but did as I bade him. We traversed the long cheerless hall to the front door, and I sent him before me into the woodland. My notions of the geography of the region were the vaguest, but I wished to examine for myself the premises that evidently contained a dangerous prowler. I was very angry and my rage increased as I followed Bates, who had suddenly retired within himself. We stood soon beneath the lights of the refectory window.

The ground was covered with leaves which broke crisply under our feet.