"Why not?" inquired the somewhat puzzled young aviator.
"You'll be seen."
"Who by?"
"A man who was just here."
"Do you mean that, Hiram?" exclaimed Dave in a startled tone.
"I certainly do. Look," said Hiram, pointing, and then he added: "No, the trees shut him out now. As I just said, though, we have been discovered."
Now Hiram arose to his feet, the danger of being seen appearing to have passed. Dave followed his example.
"Some one was here, you say?" began Dave.
"Yes."
"Who was it?"