"We are not sure where they are located, but they have a powerful battery somewhere there, and we have tried for two weeks to find it. You see we are three and a half miles from that hill," said the officer.
"You should aim for that hollow directly north of the hill," said Alfred.
Both officers looked at Alfred, who nodded his head and kept a sober face. Both men began to laugh. "What makes you think they have their big battery there?" asked one of them.
"Because we have just been examining the bench mark which the Germans left on the side of the hill," replied Ralph.
"What do you mean? Where?" asked the officers in a breath.
The questions were almost shouted. The excitement attracted others near by.
"That can't be possible," said one of the officers.
"Do you mean," said another, "that the fellows over there left a range mark?"
"Well, we don't know about that, exactly, but in coming up,—here Frisky,—our dog treed something in a hole,——"