"Busy with your own suggestion of some time back," Jack responded.
Andy, who had been listening to this conversation, let his eye wander to the instrument board, and he gave vent to a low whistle. "Right!" he said.
"Don't get you yet," Fred repeated, bewildered.
"We're going to run out of fuel before we reach the other side," Jack announced. "You'd better open up with the radio and see if we can reach a vessel that will replenish our supply."
"How do we stand?" asked Don anxiously.
"Oh, we've got enough for the immediate present, but not sufficient to carry us all the way," Jack answered, and Andy nodded his head in affirmation of the statement.
Fred, who had not put on the headpiece of the wireless since the battle with the other plane, now adjusted the earpieces, pushed forward the switch, and opened up with that call which almost unfailingly will bring a response from any other radio within receiving distance of the message—S O S.
Time and again he repeated it, but without getting an indication of a response.
"Don," said Jack at last, "you've got the charts there. How do we stand with regard to the regular steamer route?"