“I don’t think it was intended for us,” responded the young aviator.
“Why not?”
“Because that revolving light, or whatever it is, flashed in every direction, and that firearm wasn’t aimed towards us.”
“That’s so,” agreed Hiram. “But what was it done for at all?”
“We had better try and find out,” suggested the young aviator.
The boys waited for some little time, expecting a renewal of the strange manifestations, but it did not come. Then Dave led the way, creeping up the incline. As they reached the top of the knoll, they paused and looked about them. Sheltered in a kind of a dip of the ground, they could make out half a hundred sheep huddled together. No human being was visible.
“There’s the contrivance that flashed and fired,” announced Hiram, pointing to a small raised platform at the edge of the knoll.
“I guess it is,” assented the young aviator; “go slow, Hiram. No need to run any risks.”
Neither could refrain from satisfying his curiosity as to the purpose of the device near to them. As they neared it, proceeding cautiously, the bright rays of the moon, just rising, showed clear outlines of the platform and the object upon it.
“Hark—listen!” ordered Dave, suddenly.