we saw him plainly, then his figure grew dim and indistinct. I heard nothing except my own hard breathing. But in a moment there was another sound—a muffled exclamation, and the noise of a man stumbling; a sword, too, clattered on the stones of the passage. We looked at one another: the noise did not produce any answering stir in the house; then came the sharp little explosion of a match struck on its box, next we heard Sapt raising himself, his scabbard scraping along the stones; his footsteps came towards us, and in a second he appeared at the door.

"What was it?" I whispered.

"I fell," said Sapt.

"Over what?"

"Come and see. James, stay here."

I followed the Constable for the distance of eight or ten feet along the passage.

"Isn't there a lamp anywhere?" I asked.

"We can see enough with a match," he answered. "Here, this is what I fell over."

Even before the match was struck I saw a dark body lying across the passage.

"A dead man!" I guessed instantly.

"Why, no," said Sapt, striking a light: "a dead dog, Fritz."

An exclamation of wonder escaped me as I fell on my knees. At the same instant Sapt muttered, "Aye, there's a lamp," and