CHAPTER XIX

THE MAP'S SECRET

While all these things were happening to the boys on the seaplane, Curlie Carson and Joe Marion were working hard to repair the damage done to their radiophone set by the lightning. With the boat pitching about as it was, and with the wind and waves keeping up a constant din, it was a difficult task.

Just what coils and instruments had been burned out it was difficult to tell. All these must be tested out by the aid of a storage battery. When the defective parts had been discarded, it was necessary to piece together, out of the remaining parts and the extra equipment, an entirely new set.

"Have to use a two-stage amplifier," shouted Curlie, making himself heard above the storm.

"Lower voltage on the grid, too," Joe shouted back.

"Guess it'll be fairly good, though," said Curlie, working feverishly. "Only hope it didn't burn out the insulation on our aerials. Want to get her going again quick. Want to bad. Lot may depend on that."

The insulation on the aerials was not burned out. After many minutes of nerve-racking labor they had the equipment together again and were ready to listen in.