“At the same time I might point out that there is nothing sure in this, and that you may have to fight also,” concluded the commanding officer, as he waved a dismissal.
“Oh, were ready for anything,” announced Tom. And as he and Jack got outside he clapped his chum on the back, crying: “That's the stuff! Good old C.O. to send us! That's what we've been looking for! Maybe we'll have time to drop down and shoot some of the Huns that are guarding Harry.”
“No chance of that—forget it now,” urged Jack. “We'll clean up this location trick first, and then think of a plan to get Harry away. It sounds hard to say it, but it's all we can do. Orders are orders.”
They were glad they had made ready the speedy Spad plane, for it was in this that they would try to locate the hidden battery, and, having received detailed instructions from the major in command, the two lads climbed into their air plane and started off.
The day was clear and bright, just the sort for aeroplane activity; and it was evident there would be plenty of it, since, even as they began climbing, Tom and Jack saw planes from their own aerodrome skirting ahead of and behind them, while, in the distance and over German-held territory, were Fokkers and Gothas with the iron cross conspicuously painted on each.
Tom and Jack had been given a map of the front, their own and the German lines being shown, and the probable location of the hidden Hun battery marked. This they now studied as they started over the front, Jack being in front, while Tom sat behind him, to work the swivel Lewis gun.
Their Spad machine was one that could be controlled from either seat, so that if one rider was disabled the other could take charge. There were two guns, one fixed and the other movable, and a good supply of ammunition.
“Well, I guess there'll be some fighting to-day,” observed Tom, as Jack shut off the motor for a moment, to see if it would respond readily when the throttle was opened again. “They're closing in from both sides.”
And indeed the Allied planes were sailing forth to meet a squadron of the enemy. But none of the Hun craft seemed to pay any attention to Tom and Jack. Steadily they flew on until an exclamation from Jack caused Tom to look down. He noted that they were over the German lines, and headed for the probable location of the battery that had been such a thorn in the side of the Allies.