y. In years he was no
more than a lad.

"Not a very dangerous customer, anyway," thought Evan.

Issuing from the store Evan jumped on a moving bus bound up-town. He
took a seat on top; the youth got in below. At Forty-Second street
Evan changed to a cross-town car; his pursuer rode on the platform. At
Third avenue he changed again--but without shaking the other. Half an
hour later making his way through Waverly place towards Washington
Square, he was well aware that the grey figure was still behind him,
though pride forbade him turning his head to see.

Reaching the Square, Evan dropped on a bench and waited to see what
would happen. The slender figure passed him, eyes calmly bent ahead,
and sat down on a bench fifty feet farther on. Evan rose again, and
retracing his steps, walked down the east side of the Square, and
entering from the Fourth street corner, sat down again. Once more the
youth passed him and sat down beyond. There were but few people
around; it was hardly possible that he thought his movements had not
been perceived by the man he was following. "As a sleuth you're an
amateur," thought Evan. "You don't care whether I'm on to you or not.
But I must say you have your nerve with you. I'm considerably bigger
than you."

He got up and approached the other. The stripling looked straight
ahead, affecting to be unconscious of his coming. Evan came to a stand
before him and said abruptly:

"What's the idea, kid?"

The youth looked up startled, then quickly drew the mask over his face.
"I don't understand you," he said.

"Come off," said Evan mockingly. "Do you think I'm a blind man not to
notice the particular interest you are taking in my doings? What's the
idea?"

The boy's eyes held to Evan's steadily; they were the eyes of a fanatic
rather than a crook. "I don't know what you're talking about," he said.

"You've been trailing me for the last two hours."

"You're mistaken. I never saw you before."

Evan laughed in exasperation. "That's childish! Do you mean to say
you didn't pick me up in Troy street two hours ago, after that row with
the fruit vendor?"

"I don't know where Troy street is," was the answer.

Evan changed his tactics. Dropping into the seat beside the boy he
said: "Look here, I'm a regular fellow. Loosen up, kid. Give me the
dope. What's it all about?"

The other was silent.

"God knows why anybody should take after me," Evan went on. "I haven't
comm