"There he goes!"

"Who?"

"Buddy Girk. See him sneaking along the buildings over there?"
and the youngest Rover pointed with his hand.

All saw the figure, and Tom at once proposed that they follow the
fellow. Frank was willing, and away they went across the street
and also into the gloom.

Buddy Girk was making good time past a number of business
buildings which at this hour of the night were locked and barred
up and practically deserted.

"I wonder if he saw us start to follow him?" whispered Dick,
after several blocks had been passed.

"I don't think so. If he had, it's more than likely that he
would have legged it to get away. He -- hullo, he's going into
that alleyway!"

As Tom spoke he pointed to an opening between two tall office
buildings. Reaching the spot they saw, at the foot of the
alleyway, a couple of tenement houses. Buddy Girk was ascending
the steps of one of the houses, and presently he disappeared
within the dark hall.

"He must be stopping here," remarked Sam.