“Somebody’s there. Charlie heard ’em.”

Van Vernet hesitates a moment, looks first at the prisoner, then at Charlie, and slowly draws forth his dark lantern.

“I’ll go up and see,” he says half reluctantly, and making his pistol ready for use. “Watch the prisoner, Charlie.”

But Silly Charlie follows Vernet’s movements with his eyes until he has passed through the low door leading to the stairway. Then, gliding stealthily to the door, he assures himself that Vernet is already half-way up the stairs. The next moment he is standing beside the prisoner.

“Hist, Mr. Warburton!”

“Ah! who—,” Alan Warburton checks himself suddenly.

“Hush!” says this strangest of all simpletons, in a low whisper, at the same moment beginning to work rapidly at the rope which binds Alan’s feet. “Be silent and act as I bid you; I intend to help you out of this. There,” rising and searching about his person, “the ropes are loosened, you can shake them off in a moment. Now, the darbies.”

He produces a key which unlocks the handcuffs.

“Now, you are free, but remain as you are till I give you the signal,—ah!”

The tiny key has slipped through his fingers and fallen to the floor. It is just upon the edge of the scrap of dirty carpet; as he stoops to take it up, it catches in a fringe, and in extricating it the carpet becomes a trifle displaced.