He paused, as though reflecting whether he ought to tell me.

“Well, sir, it’s like this,” he said at last. “The ’ouse is, as you’ve seen, boarded up, and there’s nobody living there but—”

“Yes? But what?”

“Well, for the last eight nights there’s been a light in a window on the first floor.”

“A light? But how could you see a light if there were one, with the windows boarded up?”

“Oh, it can be seen right enough, through the chinks between the boards.”

“Who has seen it?”

“I have—and others also.”

“Is it always in the same window?”

“Not always in the same window, but always on the same floor. Ah, no! On two nights there was a light on the second floor too.”