But there was no time now for a discussion of family relationship. After
a round of gasps and exclamations, they got down again to the business of
their radio investigation.

That was about the extent of the information that the Kingston amateur
was able to communicate to them, except that he had been an interested
listener-in to much of the code conversations between the would-be
rescuers and the two very strange radio contestants. He, however,
promised to make further inquiries and to call them again if he learned
anything that might be of interest to them.

"Well, dad, it looks as if you were right when you told us how to go
about to solve this mystery," Cub remarked as he dash-and-dotted a "G N"
(good night) to the Kingston amateur.

"You mean problem," reminded Mr. Perry with a smile.

"Well, maybe,--I won't dispute your word since your idea has proved so
brilliant thus far--but I can't see the mathematics yet."

"Nor the geography?"

"Well, yes; it took us from Kingston to Port Hope and from there to
Edwards College," Cub admitted. "I suppose there's a little
geography in that."

"Remember this, that mathematics isn't all figures," said the operator's
father. "Keep that in mind, and maybe it'll be worth something to you
before we're through with this affair."