"Man, or boy, Hugh?" asked Thad, copying the example set by the other,
and even bending his head so that his lips might come closer to Hugh's
right ear.

"Can't make that out," he was told.

"But what in the wide world is he trying to do?" pursued Thad, his
curiosity now fully aroused, as the unknown again started to move
forward, pursuing the same strange cautious tactics as before.

"That's what we ought to find out," Hugh told him. "I don't like the
way he's sneaking around here. It looks as if he might be up to some
game."

"Oh! perhaps it's a tramp," suggested Thad, as the idea dawned upon his
brain.

"He may be meaning to break into the building, to sleep there to-night.
I wouldn't put it past a hobo to steal anything he could find left in
the lockers. Hugh, it's up to us to put a kink in his rope. Let's
chase after him before he disappears."




CHAPTER VII

CAUGHT IN THE ACT