The commander thought for a moment.
“I'll try it!” he suddenly said. “It's worth all it will cost.”
He called an orderly and issued his instructions. Tom and Jack had not yet been dismissed, and now the commanding officer turned to them and said:
“Since you boys were sharp enough to discover this, I'll let you have a front seat at the show which will start soon. Go up and do contact work. Let the gunners know when they make a hit.”
The air service boys could not have wished for anything better.
“Once more for our bus!” exclaimed Jack delightedly, when they were outside.
Their Spad had been refilled with gasoline, or “petrol,” as it is called on the other side, and oil had been put in, while the machine guns had been looked to.
“You seem to have spotted it all right, Tom,” went on Jack, just as they were about to start, for word came that the American batteries were ready.
“Yes, I was looking down through the glass, and when I saw the old chateau it struck me that it had suddenly grown a beard. I remembered it before, as being on a bare hill. I thought it was funny, and that I might be mistaken. But when you agreed with me I knew I was right.”
“Oh, the Huns have brought up trees and bushes to disguise the place all right,” declared, Jack. “The only question is whether or not the battery is hidden there.”