e feel so good to-day. He's a man
we've been looking for for months. He is one of the German agents
implicated in the papers we seized in Wolf von Igel's office. The
secret service has been more than anxious to discover his whereabouts.
Now we have him, for he's under observation and cannot escape us.

"He came to this country about a year before the war started,"
continued the Chief, a gleam of satisfaction shining in his eyes, "and
bought out an insurance agent who made a specialty of insuring suburban
properties. From the beginning, he made a practice of visiting the
properties that he insured. This took him about a good deal and gave
him an excuse for being so much in a motor-car. Ah! What an ideal
situation for a spy! Clever, aren't they?"

But the Chief gave his visitor no chance to reply to his query.
Smiling again, he went on, "But even this is not all. Of course you
understand, Captain, that your boys are not the only amateurs helping
us out in this pinch. Ever since we became convinced that the Germans
have a line of secret wireless stations by which they are relaying news
to their agents in Mexico--for we're morally certain that is where
these messages go--we've had trusted amateurs helping us just as you
have helped us--by listening in. Some of them have been at it for
weeks. When we could get no trace of secret messages along the direct
route to Mexico, where they would naturally have their stations, we
began to suspect that the Germans were using a round-about route in the
hope of deceiving us completely."

"And you've located some of them?"

"Exactly. Your boys will tell you that yesterday was one of those days
when radio communication is at its best--when an operator picks up
sounds that at other times he could not possibly hear. The result was
that we picked up yesterday's secret message at half a dozen different
points. Where do you think the first one was?"

"Give it up."

"Buffalo--north instead of south. Clever, eh? Then we got it near
Detroit, and Milwaukee, and Omaha, and Santa Fe. Finally one of our
listeners picked it up at Socorro, a place about one hundred and
seventy miles north of El Paso. Now we know the line of their
stations. We'll set a regiment of amateurs to listening in along that
line and we'll locate every station in it in no time. Then we'll grab
all their agents at the same time in one big raid and wipe out this spy
system for good."

"That is great n