"Oh, Tom, is he—is he——" she could not go on.

"He's only stunned, I guess, Aunt Martha," was the reply. "But he got a pretty good crack."

"Did the flying machine do it?" queried Randolph Rover.

"Yes. We had it tied fast, but when we started the engine and the propellers it broke loose and ran right over Dick."

"I dun tole you boys to be careful," burst out Aleck. "It's a suah wondah yo' ain't bof killed. Wot kin I do, Massa Tom?" And he got down on his knees beside Dick, for he loved these lads, who had done so much for him in the past.

"He's only stunned, I think—and he's coming around now," answered Tom, and at that moment Dick commenced to stir. Then he gave a gasp, opened his eyes, and suddenly sat up.

"Stop her! Stop her, Tom!" he murmured.

"Dick! Dick, my poor, dear boy!" burst out Mrs. Rover, and got down beside him. "Oh, I am so thankful that you weren't killed!"

"Why—er—why!" stammered the oldest Rover boy. "Say, what's happened?" he went on, looking from one to another of the group. "Where's the biplane?"

"Flew away," answered Tom. "You got struck and knocked down, don't you remember?"