cowed now, and kept his eyes fixed upon the floor, save for an occasional
look he stole at the secret service man standing in front of him. The
latter seemed entirely at his ease and acted as if not a thing out of the
ordinary had taken place.

Bob was greatly impressed, and looked with marked respect at the
quiet-mannered detective standing near him. He wondered what it was all
about, and his father's words of the evening before concerning plotters
and spies came again to his mind. He wondered if he could join the secret
service and help his country in that way. Then he remembered that he was
only seventeen and sighed to think that there was probably less chance of
that than there was of being taken into the army.

What was the detective going to do with the German, wondered Bob. The
car was approaching the high school, and he would have to get off soon
and he did not want to miss any of the drama. Suddenly he remembered the
police station on the block adjoining the school building and decided
that that must be the detective's destination. Bob decided to stay on the
car long enough to see anyway.

They passed the high school, and sure enough, as they came to the next
corner, the secret service agent motioned to the German to follow him
out. Bob decided to go along. They got off the trolley car and entered
the police station. Behind the desk sat the sergeant, a man named Riley,
well known to Bob. The detective led his prisoner up to the rail.

"I want you to take care of this man for me, Sergeant," he said, at the
same time displaying his badge.

"Certainly," said Sergeant Riley quickly. "Here, Donovan," he called to a