Then the change came; all at once.  The machine turned on its side, the engine still running at full speed, and for one instant, before the downward plunge came, Jimmy caught sight of a limp, lifeless form half-hanging, sidewise, from the pilot’s seat.  Jimmy had fired straight, and one of his antagonists was out of the fight.

He turned his attention to the flier on his left, fired a round at him at rather long range, and then glanced to his right.  It was well he did so at that instant.  The German on the right of the trio had looped in turn, to get on to Jimmy’s tail.  Jimmy saw the trick in the nick of time, and letting the left-hand plane go for the moment, looped in turn.  As he turned, he saw what he thought must be the fourth enemy machine—–­the big fellow that had swooped down on him at the beginning of the fight—–­speeding straight at him.  He quickly turned his loop into a side-loop, slid down swiftly, caught himself, and assured that he had escaped both fliers for the moment, took a rapid glance at his compass and saw that he was headed straight for home.  And home Jimmy went, as fast as his machine would go.

CHAPTER VII

PARKER’S STORY

This time he had a very fair start, and he made the best of it.  Looking back, he saw that two of the German machines headed after him, but apparently gave up the chase before it was well begun.  Once Jimmy had a feeling that he ought not to run back to safety before endeavoring, to see what had happened to Parker, but the flight sub-commander had been most explicit in his instructions on that head.  “If you by any chance lose Parker,” he had said, “come back.”  He had lost Parker, right enough.  That was about the first thing he had done, he thought to himself with some feeling of self-condemnation.

All the while he was roaring on, his machine seemingly feeling like a homing pigeon.  He felt a fierce love for that noble hunter.  He felt he could almost talk to it and tell it how proud he was of having been able to put it through its paces.  Never had there been such a machine before, he thought.

At last the home airdrome came into sight far below.  Many a time thereafter was Jimmy to feel glad he was nearing home, but never more sincerely than on the afternoon of that first battle.  He made a good landing.  His mechanics were waiting for him, and wheeled the machine toward the hangar, while Jimmy walked off to headquarters to report.  Arrived there, he found that both the flight commander and sub-commander were out.  No one seemed worrying much about him.  He had been so intent on his job and it had meant so much to him that it took a few minutes for him to get the right perspective, and see that, after all, he was only one of the pieces in the big game, and a bit of waiting would not hurt him or make his report any the less of interest.