“Yes—I wish I could take it with me,” responded Bob. “What news, Turner? Anything I should know?”

“I got one sketch of their new trench line, but it’s not very satisfactory. Continue scouting along the river, will you? That’s Morton you see up there. He’s going north. By the way, the Bolshies are getting some planes rigged up—pretty good ones. Look out for them. I almost ran into one in these everlasting clouds. So long.”

He ran on toward the shack, while Bob and Denby continued to the flying-shed, where the mechanics, at sight of Denby in overcoat instead of flying clothes, began to roll out a little Nieuport monoplane on to the smooth-packed snow.

“Going up alone, sir?” concluded one of the soldiers, saluting Bob as he put the question.

“Yes,” he nodded, beginning to look over the airplane before him with the intentness of the man who knows that he must trust his life to those frail wings. Denby followed Bob’s eyes, and neither officer nor corporal seemed overpleased with their inspection, though Bob said only:

“No news of the Nieuports we expected this week, Rogers? Did you make inquiries at the port yesterday?”

“Yes, sir—they’ve received nothing there. But I’ve gone well over this one. It flew well, you said, sir, the last time you were up.”

“Oh, yes. Nothing to complain of. Let’s have the boots, Denby.”

The corporal slipped the fur leg-coverings over Bob’s feet, and, when the aviator was seated in the little plane, fastened the straps across his body. Then, unwilling that the others should take his place, he ran to twirl the propeller. The Nieuport ran along the snow and rose into the dull, cold air.

Bob pointed upward, making for a level above the first low-lying belt of clouds. The motor was running smoothly. Bob told himself that he was growing cranky, and that he must cease regretting the Spy-Hawk and make the best of things. But telling himself so did not do much good. He wanted the airplane of his choice to fly in, as a good horseman wants his own racer, tried and proved on many a turf. On the Western Front Bob had had his pick of French and American planes—the famous ace was welcome to all or any. But here at this outpost of the Russian wilderness the supply of airplanes so far was meagre. He had to fly in whatever he could get hold of; and often, against his grain, was obliged to scout in battle-planes, or risk flights under heavy fire in light scouting craft.