Entering the old boathouse, the boys lit all the lanterns they possessed, and those who had lost their head-coverings tied masks over their faces. Then some approached the closet in which the Soden twins had been confined.

"Hello!"

"They are gone!"

"What does this mean?"

"They must have broken out and run away!"

Such were some of the exclamations indulged in when it was found that the apartment was empty. A hasty examination was made of the hasp and staple of the door, and they were found intact. A wooden peg had served to keep the hasp in place.

"It looks to me as if somebody had let them out," said Dave, after an examination.

"But who would do that, Dave?" questioned Phil.

"Somebody not a member of the Gee Eyes—some enemy of the club."