"We'll try and find out," said Hugh, with his usual promptness. "Now
he's gone further from the window let's be moving along. That plank
ought to make it easy sledding for fellows like us."

Indeed, it would be hard to find a couple of more athletic boys than
Hugh and his chum. Their intense love for every type of outdoor sport
had kept them in splendid physical condition, so that their muscles
were as firm as those of an athlete in training. To make their way
up that sloping board and reaching the open window was likely to
prove a mere bit of child's play with such fellows.

Hugh was the first to ascend. When he had raised himself so that he
could peep over the window ledge and see within the building he
apparently found the coast clear; for Thad, coming along just behind,
received a gentle prod with a toe, twice repeated, which he knew to
be a signal that all was well.

By the time Thad arrived the other was already well within the room,
having slipped across the window-sill without making the slightest
sound. All was dark around them, but further on they could see that
weird shaft of light moving this, way and that, indicating the spot
where the unknown intruder just then happened to be located.

"He's making for the locker room, don't you see, Hugh?" Thad ventured,
with a perceptible quiver to his low voice.

"Sure thing, and he knows where he's going, in the bargain," the other
went on.

"Of course, it's no hobo, then," continued Thad. "That scamp knows