“Hoop la!” cries Charlie; “gimme rope.”

Seizing the rope from Vernet’s hand, he advances toward Alan, gesticulating savagely. Suddenly Alan raises the iron bar and menaces him. Charlie stops a moment, then flinging aside the rope he makes a swift spring, hurling himself upon Alan with such sudden force that the latter loses his guard for a moment, and then Van Vernet is upon him. He makes such resistance as a brave man may, when he has a single hand for defence and two against him, but he is borne down, handcuffed, and bound.

As he lies fettered and helpless, in close proximity to the murdered sneak thief, Alan Warburton’s eyes rest wonderingly upon Silly Charlie, for during the struggle that strange genius has contrived to whisper in his ear these words:

Don’t resist—keep silence—we are gaining time for her!

“Charlie,” says Vernet, “that’s a good bit of work, and I’m proud of you. Now, let’s make our prisoner more comfortable.”

Together they lift Alan, and place him in a chair near the centre of the room. Then, finding it impossible to make him open his lips, Van Vernet begins a survey of the premises.

“We must get one or two of my men here,” he says, after a few moments of silent investigation. “Charlie, can I trust you to go back to the place where we left them?”

Charlie nods confidently, and makes a prompt movement toward the door. Then suddenly he stops and points upward with a half terrified air.

“Some one’s up there,” he whispers.

“What’s that, Charlie?”