"These young men are serving France for love, and nearly all of them are privates. Carstairs and Wharton are in the ranks and you'll have to take a place with them."

"I accept gladly, sir."

"The right spirit. Wharton, you and Carstairs get him a uniform and arms, and he'll stay with you until further orders."

Then Captain Coulton hurried away. Captain Creville bowed and also withdrew.

"Come on, Scott," said Carstairs. "We've an extra uniform, and it'll just about fit you. A rifle, cartridges and all your other arms are ready, too."

John was equipped promptly, and then many introductions followed. It was a little Anglo-American island in the midst of a French sea, and they gave a joyous welcome to a new face. John noticed that many of them bore slight wounds, and he soon learned that several others, hurt badly, lay in an improvised hospital at the rear.

"The Germans are pressing us hard," said Wharton. "They whipped us yesterday afternoon, and they're sure to come for us again today. There's Captain Colton now standing on the earthwork, watching through his glasses. In my opinion something's doing."

Nearly all the Strangers went forward. From a hillock, John with his two new friends looked toward the forest, miles in their front. The forest itself was merely a blind mass of green, but overhead swung aeroplanes and captive balloons.

"Look up!" said Carstairs.

John saw a half dozen aeroplanes hovering some distance in front of their own lines.