With not more than a word or two of explanation, Buck also set to, and both lads did their best to revive Stanley, who had fallen again into unconsciousness. The deadly swoon had been strengthened by Stanley's effort to put the last rack of bombs fully in place during the train bombardment, as we have already seen. They tried cold water, brandy, and also some medicine Buck produced from his own kitbag, but all to no apparent avail. Meantime the explosions to the southward were increasing and, worse still, were drawing nearer, though slowly. "We got to get out of this," said Lafe at last. "While I put Stanley back in the biplane yon draw as much of your petrol from your tank as you can spare and put it in to mine." "All righty oh! We got to get a move on, too. Look yonder!" A bluish-green roll of flame was moving along the plain beyond the forest, showing dimly above it certain flying specks that were undoubtedly airplanes, but whether hostile or friendly was not apparent. "Course it's Fritzy, Lafe," was Bangs' comment who, after aiding Blaine to stow the wounded man as comfortably as possible in his own manhole, was already at work replenishing the biplane's tank from his own. "To be square, I'll divide up, giving you a leetle the most. We gotter to get back -- eh?" "If possible, yes. I don't hanker after a German prison camp. It would sure kill Stanley, if he isn't dead already." By the time they had their brief preparations completed, the fire, steadily approaching, struck the edge of an opening through the woods and suddenly burst into tremendous flame, with an accompanying report. "Wait, Lafe," cautioned Buck, for both were in their seats. "Let, me rise first. I'll mosey towards that fire. As for you and Stan -- you make your get-away. Sooner you get back to the home plate, the more you'll be apt to do for Stan. Stan's a bully chap -- durn 'im." Up into the air rose the Nieuport, while Buck was thus delivering himself. Over towards the line of fires and the shadowy circling of planes he went while Blaine himself made an attempt to rise. What was the latter's consternation to find that his plane would not rise sufficient to clear the concrete oval by which the open space was surrounded! "What will I do now?" Blaine almost gasped. "Must be something wrong with the machinery that I failed to notice." Another explosion, much nearer, that seemed to tear up trees within the forest. At the same time he distinctly saw Buck's machine circling round and round, high up in the air, and directly over where the last explosion had occurred. It looked puzzling. But Lafe had no time just then to observe Buck's doings except that, during the last flash, the concrete oval had given way. Meantime the biplane was trying to lift itself a trifle higher, and happened to be beaded towards where the explosions were occurring. "Damn if he ain't droppin' bombs, too," Blaine gasped, then quickly solved the riddle of Buck's maneuvers.