At the same moment he felt the pressure of Chester's automatic, which the lad gripped inside his pocket, against his back.

CHAPTER X.

ON THE AISNE.

The prisoner was in a quandary. To raise a cry of warning, he felt sure, would mean his instant death; and yet, should he remain silent if he was asked any questions concerning his companions he might also get into trouble.

"Good evening, Captain," said the officer who had accosted him. "Are you going far?"

The pressure of the revolver against the German's back increased, and he replied:

"I am accompanying my friends to the bank of the Aisne. They wish to have a look at the enemy on the opposite shore."

"You might invite them to go with us when we cross the next time," was the laughing rejoinder. "When we cross again we shall stay."

The prisoner also forced a laugh.

"I am likely to go across sooner than I expect," he said.