"Of course you are only to butt in if we are outnumbered," the leader explained in conclusion. "The experienced and able fliers must take care of such of the enemy as venture to attack our big machines. Some of these Boches will be their best men, with records of a dozen or two machines to their credit. It would be little short of suicide to send a novice up against them, you understand."

Tom was ambitious, and would of course be delighted to prove his metal when opposed by a famous "ace;" whose name and reputation had long made him a terror to the French and British airmen. Nevertheless he recognized the wisdom of what the captain was telling him, and promised to restrain his eagerness until given the prearranged signal that his chance had come.

It made Tom feel proud to know he had won the good opinion of such a brave man as the captain, as well as the friendship of those other gallant souls composing the American squadron of aviators fighting for France.

"Still," he said to Jack later on, when they were together in their room getting into their ordinary street clothes, "it made me feel a bit cheap when he spoke of my being pitted against just an ordinary pilot, some fresh hand as anxious as we are to achieve a reputation. At the same time that's what we must seem to these veterans of scores of air combats, all of whom have met with the most thrilling adventures again and again."

Jack managed to hide his bitter disappointment. He realized that he would never be in the same class as his more brilliant chum. Tom fitted for becoming an expert in the line had chosen for his calling. On the other hand Jack began to believe that he was a little too slow-witted ever to make a shining success as a fighting aviator, where skill must be backed by astonishing quickness of mind and body, as well as something else within the heart that is an inherited birthright.

"Anyhow," he consoled himself by saying, not aloud, but softly, "I can be the pilot of a bombing machine, and perhaps in time they'll give me charge of a plane used as fire-control during the battle. That is as far up the pole as I ought to aspire to climb. These chaps in the Lafayette are one and all picked men, the very cream of the entire service."


CHAPTER VIII
OVER THE ENEMY'S LINES

"I say, Tom, it looks like a poor day for flying I'm afraid," Jack called out in the chill of the early dawn the next morning, he having been the first to get out of bed and step over to the window of their sleeping room.

It was of course in the villa placed at the disposal of the escadrille, many miles back of the first line of trenches.