Yes, the thing was moving and coming straight toward the hangar, too. What if it turned out to be either Percy or his shadow, Sandy Hollingshead? Would they dare attempt another mean trick similar to that which was played on the preceding night?
Andy was gritting his teeth and trying to decide whether he ought to shout to let them know their presence was known, when he heard a low signal whistle.
Then after all it was Frank coming back. The two Bird boys had studied telegraphy together, as well as “wigwagging” and the use of the heliograph, as used by the signal corps of the United States army. They had arranged a code after the manner of Morse, by means of which they could communicate with each other, no matter what the distance separating them.
“Hello, Frank, that you?” Andy now asked, softly.
“What’s left of me after banging along the road on a flat tire,” came the immediate answer.
“Gee! did that plagued plug let go after all my pains to set it?” said Andy, regretfully, for he did not like his cousin to deem him an indifferent workman.
“It sure did before I’d gone two hundred feet along the road. But then I wasn’t going to let a little thing like that keep me back,” replied the other, as he came in through the door Andy opened.
“Did you manage to wake him up? I tried once, I remember, and it was a healthy old job. Casper sleeps like a log,” Andy went on.
“Well,” replied Frank, smiling, “it was no easy task; but I pounded on his door with a club till I made such a racket a neighbor called out to know if anybody happened to be dead. I told him I was afraid Casper must be. But just then he poked his head out of a window and told me not to worry, that he had only been napping.”
“Wow! he sure is the limit;” declared Andy. “And then, when he heard what news you brought, did he dress and come down?”