"You'll find out how harmless I am if I catch you followin' me around again. Just mind your own business after this and keep goin' in the opposite direction when you see me comin'."
The man's insulting tone annoyed Frank.
"Look here," he said, sharply, facing Montrose. "If you don't start off in the opposite direction right now, I'll call a policeman. Now, get out of here."
Somewhat taken aback, Gus Montrose halted.
"You were followin' me—" he growled.
"You heard what I said. Clear out of here and stop annoying us."
If Montrose had hoped to frighten the lads, he was disappointed. Like most cowardly men, he backed down readily when confronted with opposition. Grumbling to himself, he turned away and crossed the street.
The Hardy boys went on toward school.
"That'll give him something to think about," remarked Frank.
"You hit the right note when you said he must have something on his conscience or he wouldn't have thought we were following him."