didn't
know I had one."

"Well, it makes the hunt more interesting, anyway," said Cub. "But let's
not waste any more time. Here goes again."

He called the other Canadian amateur on his list of three and learned
from him that many wireless boys had followed the course of the rescue
boat with their receiving outfits. From him Cub got the calls of four of
these interested boys. Then he called the third on his original list, but
all the information the latter was able to give was that a metropolitan
morning newspaper carried a column "story" on the front page about the
Thousand Island Crusoe and the rescue boat from Oswego.

"You're right again, dad," said Cub, with a grim grin of subdued wonder
and eagerness.

"I shouldn't be a bit surprised to find that the Associated Press has
chartered a boat and is following us," declared Mr. Perry.

"Would that be mathematics or geography?" asked Bud.

"It would be imagination," replied Mr. Perry with a keen smile. "But,
say, Cub, don't you think you've grabbed off enough glory for yourself?
Give your friends a chance to win some honors."

"Right you are, dad," returned the boy at the key, rising and removing
the phones from his ears. "Hal, you call half this list and then let Bud
call the rest"

It was well for the sake of a distribution of honors that this course was
taken, for a thrilling surprise was in store for them in response to the
next call.

CHAPTER IX

The Radio Diagram

As good fortune decreed, Hal found Number One in the new list sitting in
and listening for anything interesting in the ether. It required only a
few short sentences to acquaint this amateur with the object of the
Catwhisker's search.

"I can tell you just how to find those fellows," he replied. "I
listened-in to the best line of detective work on that subject you ever
heard of. Sherlock Holmes isn't in it there."

"Hooray!" shouted Bud, as he finished jotting down the last sentence.

"There are three amateurs, one in Clayton, N.Y., one in Rockport and
one in Gananoque, Ontario, who have radio compasses and they worked
together to locate the fellow on the island," continued the informant
with the eagerness of fraternal interest and generosity. "I will give
you their calls--"

The message was interrupted by a strong spark, which could not be
ignored. Sender Number one stopped sending, and Hal gave ear to the
new message.

"I will save you the trouble," read the dots and dashes