This he proceeded to do rapidly, omitting nothing that seemed of moment. When the meddler's secret work in tampering with their plane before they went up on the night raid was mentioned, the flight lieutenant's eyes flashed with indignation. Being a pilot himself he could appreciate such rank treachery better than any layman could.

"That's how the land lies," said Jack in conclusion. "And you understand now just why we must disappoint you, and make you look elsewhere for two companions on your trip to Berlin to frighten the Huns. It breaks my heart to decline, but this other matter must take my whole attention."

"You don't blame Jack, do you?" asked Tom.

"I should say not!" came the ready answer, accompanied by a keen look, first at Jack and then at the other, as a dazzling idea suddenly flashed into Beverly's mind. "Business before pleasure, every time with me; and it's only right you should devote every atom of your mind and body to beating that skunk to the post."

"We've settled on that policy all right," said Jack. "The only trouble is we haven't so far found a remedy to overcome his long lead; for he's got almost two days' run head of me, you understand."

Tom saw the lieutenant smile broadly and draw a long breath. Then something seemed to grip his heart as he heard Beverly say:

"Hold on! I've got an inspiration, boys. Perhaps there may be a way open to beat him to it yet!"

CHAPTER XI

THE AMAZING PLAN

"Tell us what you mean, please?" begged the excited Jack.