Out on the airdrome some one opened a throttle. The sudden roar of an engine struck on Billy’s ears with ominous impact. That gave him the answer. An icy current coursed his spine and he was instantly aware of a panicky urge to duck under the bedclothing and shut out the hideous turmoil. Instead he swung his bare feet to the floor and sat there, gripping the cold frame of the iron cot and shivering.

He had heard of this thing before, this pilot’s sickness, this miserable cringing and shrinking at the voice of an airplane. He remembered that Norris once⸺

But he refused to think of it. He got up hastily, shook himself, and hurried into his clothes. He went out into the chill of the pink dawn and headed resolutely toward the hangars.

His morning’s allotment of propaganda hoppers were waiting for him, punctual with the punctuality of eagerness. They stood in an animated group discussing the mysteries of the lumbering two-passenger DH that squatted in readiness for Billy’s coming, the engine idling patiently. It seemed to Billy that the bubbling of the exhaust manifolds had changed character overnight. Usually the engine greeted him in the morning with a warm welcoming pur. Now the pur held a sinister note. It sounded cunningly gratified instead of frankly glad, and there was a siren quality of oily venom, and a leering chortle in the voice of the engine.

Billy waved a passenger into the rear cockpit and made his accustomed round of inspection while the man was fussing with his helmet and goggles and fumbling with the safety belt. But he might just as well have foregone the tour for he did not consciously see a single cotter pin or turnbuckle. His vision was all of the inward-looking variety. He was acutely aware of Jennie. He saw her sitting as she sat the night before in the dim aura of the colonel’s reading lamp on the screened veranda. He saw her humid eyes turned on him, pleading. He sensed the faint chill of her tears on his cheek. He felt the clinging warmth of her beseeching arms about his shoulders.

Those arms! They were the arms of Jennie the woman—protecting, maternal arms. He could feel them poignantly now, drawing him back, back from this treacherous monster of wood and wire and fabric with the voice of flame; back from the brooding hangars; back from the waiting air!

And he wanted to go. How he wanted to go! His feet itched to be off, to run with him to Jennie. If he could only do it—go to her now, without delay—and tell her he had renounced every service but hers. He knew how it would be with her this morning. She would be lying abed wide-eyed and fearful, listening to the hum of his engine, straining for the first sound of disaster, the little deprecatory cough, the sudden silence that would follow, and then, perhaps, the rending explosion of—the last crash! Not until he had come in from his final hop and given the ship over to Hansen would she relax and turn to her pillow to sleep again—perhaps. And if⸺

Billy stopped his pacing round the waiting ship. He realized that Hansen was eying him queerly.

“Hell!” he grunted to himself and swung up the fuselage and into his seat.

In the ship he felt better. The touch of the controls steadied him. The familiar dials, staring at him like great round eyes from the instrument board, reassured him somewhat. He tested the engine. The needle on the tachometer jumped obediently to fifteen-fifty. The engine didn’t sound so badly now.