id not.
Moreover, he could set the pace, and Dick had to follow. To lose sight
of Hallo even for a moment meant to risk losing him altogether. And
Dick, moreover, dared not follow too closely. He had to be far enough
behind to make it impossible for Hallo to learn of his pursuit by
stopping suddenly, or making a quick turn.

It was a wild chase that Dick had. Hallo, for a man of his size and
years--he was well over forty--made surprisingly good time, and gave
Dick, as a matter of fact, all he could do to keep him in sight. And the
way was long. Dick was greatly relieved when they came at last from open
country into a section where houses were closer together and streets
began to take form. In a measure his own risk was greater as they
approached the town, but it was also possible for him to get much closer
to the man he was trailing, since shelter was so much more frequent. The
danger here was of running into the police, but Dick did not greatly
fear that.

"I needn't worry about the ordinary policemen," he told himself. "I
don't believe they know me at all. I could probably go up to any of
them and ask the time, or the way to the railway station, and get away
with it all right. It's only the ones who were on my track after I'd
been to Hallo's office that I've got to look out for, and I'm not sure
that even they would know me."

And now Hallo himself unwittingly made it safer and easier for his
dogged pursuer, for instead of going toward the central part of Semlin,
where policemen would be more numerous, and where the men who had gone
to make the arrest at Dick's lodgings were almost sure to be posted, he
circled through the poorer quarter toward the commercial district by the
river.

"Oh, this is fine!" thought Dick. "I'll bet he's going to his office
before he makes any report. I wonder if Stepan will think of him when
I'm missing?"

Dick had to move up very close here, for the streets were crowded with
people, and it would have been easy for him to lose his man in the
jumble of figures. Several times now Hallo, as he neared his office,
was stopped by passersby. He shook them off impatiently when they tried
to detain him, however, and once Dick was near enough to hear him say,
in an impatient tone: "Let me go! I have an appointment to keep at my
warehouse."

And now Dick had a new inspiration. He determined to take a chance. And
instead of following Hallo, he seized the opportunity when someone had
stopped th