"What are you doing here?"
"Mission," Hal yelled.
"Where to?"
Hal thought quickly.
"Greece," he said finally.
"What for?"
"That," said Hal, "is none of your business. I have my orders and I haven't time to fool around here with you. I'm due back to-morrow night."
There was a moment's silence from the other machine and then a voice called:
"Has your mission anything to do with Greece's intervention in the war?"
"Well, I can't say anything about that," replied the lad, thinking to give the other the impression that it was.