"I flew up. Didn't you ever see me fly? Why, I am a bird. And you didn't know that?"

"I—I guess you are, at that. I am getting to the point where I'll believe almost anything of you youngsters. Did he really fly up there?"

"He says he did," answered Tad with a grin. Tad knew how Stacy had climbed, for the rope already lay at the foot of the tree, but this form of climbing trees evidently was new to Bill Lilly.

"Come down out of that!" yelled Ned, catching sight of the boy up the tree.

"Where is he?" demanded the Professor.

"Up a tree," laughed the guide.

"Come down!" commanded Professor Zepplin.

"Chase Ned Rector away and I will."

"I'll stay right here till he comes down and then I am going to give him a thrashing," declared Ned firmly.

"Then I don't come down," declared Stacy firmly.