Perhaps the wires are broken. If he can't locate Dr. Gladby, get Dr. Kurtz. We must have some one. Here, Rad! Where are you?" he called, raising his voice.
"Heah I be!" answered the colored man, coming from the direction of the garden, which he had been weeding.
"Get out your mule, and go for Dr. Gladby. If he isn't home, get Dr. Kurtz. Hurry, Rad!"
"I's mighty sorry, Massa Tom," answered the colored man, "but I cain't hurry, nohow."
"Why not?"
"Because Boomerang done gone lame, an' he won't run. I'll go mahse'f, but I cain't take dat air mule."
"Never mind. I'll go in the Butterfly," decided Torn quickly. "I'll run up to the house and see how dad is, and while I'm gone, Rad, you get out the Butterfly. I can make the trip in that. If Dr. Kurtz had a 'phone I could get him, but he lives over on the back road, where there isn't a line. Hurry, Rad!"
"Yes, sah, Massa Tom, I'll hurry!"
The colored man knew how to get the monoplane in shape for a flight, as he had often done it.
Tom found his father in no immediate danger, but Mr. Swift had had a slight recurrence of his
