An examination followed, but the two men could not solve the mystery connected with Leo’s escape.

We will let our reader into the secret.

As Griswold said, the boy slipped from his bonds with ease.

This done, he lit a match he had in his pocket and began an examination of his cramped prison.

The sides of the locker were solid, but in the flooring a board was loose, and he pulled it up.

Underneath was a small opening and into this he crawled. The board was put in place again, and finding a nail, Leo succeeded in fastening it.

Crawling around in the dark and wet the young gymnast soon came to an opening leading up near the engine-room of the tug.

He came up, and finding a sheltering nook proceeded to secrete himself.

He could easily have dropped overboard and swum ashore, but by so doing he would have lost track of the rascals he had determined to bring to justice.

After leaving the locker Griswold and Broxton made an examination of the tug from end to end.