"There were only two when we passed it in front of your house."

"I know it. There must be a couple more men here, too."

"Ssh," hissed Hugh softly, grasping his companion by the wrist.

Voices could be heard, coming nearer and nearer to their hiding place. Once again the two boys almost stopped breathing while they waited for the speakers to pass. They could make out two shadowy forms following the same course taken by the automobile. The two men conversed earnestly together in tones so low, that the listeners could not overhear what was said. After a few moments the sound of the voices died away and Hugh and Bob were left alone. That is, they were alone as far as they could tell.

"Well," said Hugh finally. "They're gone."

"Seems so," admitted Bob. "We can't be sure though."

"Were those men talking German?"

"I couldn't tell."

"Neither could I for sure, but I thought they were."

"Probably so," said Bob. "At any rate it looks to me as if there was some queer business going on in this place."