Now remained only the biggest question of all. Would this crude contrivance work? Garry felt that it would, since it followed in principle the theory of the detector.

The quickest way to find out if it was workable, of course, was to try it out, and this he immediately did.

Noting that all the rest of the radio outfit was in good condition, he adjusted the headpieces and tuned up back and forth over the tuning coil to get the proper range. Soon he heard frequent buzzes in the receivers and knew that everything was all right. Now came the crucial test of the detector. He moved the needle point around on the silicon and soon was rewarded by getting the proper induction, and distinctly heard a voice. The forest-made detector worked!

The voicing was chanting over and over again:

“Boone, Garry Boone. Calling Garry Boone.”

Garry laughed to himself as he thought how much it sounded like a bellboy in a hotel paging one of the guests.

Turning to his sender he called.

“Boone talking.”

This he repeated at intervals, and after a few minutes, in which he divined that Phil and Dick were probably working their tuning coil, he established connection.

But the connection was faulty, and he was afraid that at any moment the detector would fail to work. So he called briefly: