His chum made the necessary adjustments to the mechanism and then, there being nothing more to slide down the mountainside the avalanche was ended. But what a mass of wreck and ruin there was! It was as if a mighty earthquake had torn the mountain asunder.
"It's a good thing it wasn't on a side of the mountain where people lived," commented Ned, as the airship rose high toward the clouds. "If it had been, there'd be nothing left of 'em. What hair-raising stunt are you going to try next, Tom?"
"I don't know. I expect to hear from Mr. Period soon."
"Hear from Mr. Period?" exclaimed Mr. Nestor. "How are you going to do that, Tom?"
"He said he would telegraph me at Berne, Switzerland, at a certain date, as he knew I was coming to the Alps to try for some avalanche pictures. It's two or three days yet, before I can expect the telegram, which of course will have to come part way by cable. In the meanwhile, I think we'll take a little rest, and a vacation. I want to give the airship an overhauling, and look to my camera. There's no telling what Mr. Period may want next."
"Then he didn't make out your programme
