Kasia sprang to the switch and snapped out the lights. Then she took him by the hand and led him to a couch in one corner of the room.

"If we sit here," she said, "and speak very low, no one can hear us."

They sat down, but some moments passed before the conversation was resumed.

"Now we must be sensible," she said, drawing away from him. "They may go into your room at any moment, or come in here."

"That's true," Dan agreed. And then he remembered. "Kasia," he said, hoarsely, "some one stole the box, after all!"

He heard her quick gasp of dismay.

"Not Pachmann!" she cried.

"No, not Pachmann; I don't know who it could have been, unless it was that fellow Chevrial," and he rapidly told her the whole story. "I know I was an awful chump to let Chevrial put it over me like that," he concluded. "Once we're out of here, I'm going to scour New York for him."

"Don't take it so to heart!" she protested, pressing his hand. "It wasn't any fault of yours; and besides it doesn't matter so much, since it wasn't Pachmann. Perhaps we can get it back—if we can't, why father will make another! Come," she added, rising, "the first thing is to escape. Can we get over the wall?"

"It looked pretty formidable; but I don't see what else we can do. We can't fight our way out—I haven't anything to fight with."