Mumbling to himself, Stubbs obeyed.
Arrayed in the German uniforms—the attire of lieutenants—the three advanced toward where they felt sure the main German entrenchments must be. Hal glanced at his watch in the moonlight.
"Ten o'clock," he said. "Within three hours we should have learned all we need to. As soon as we reach the German lines we shall separate. We'll meet here again at two o'clock. Is that satisfactory?"
"Suits me," said Chester.
"Want to lose me, do you?" grumbled Stubbs. "Never mind, though. I'll be here by the time you are."
"Pick up every scrap of information possible," Hal enjoined his companions. "Don't take the trouble to write it down. Just impress it on your memory."
The others nodded their understanding.
The three came now upon a light in the distance.
"Germans ahead, I guess," Chester whispered. "Careful and let all further conversation be in German."
The lad was right. Advancing two hundred yards farther, the three friends came upon the outlying sections of the big German camp. Sentinels moved about in the darkness, their forms lighted up now and then by the flare of campfires—for the night was very cold.