"This is as safe a spot as any, with the wind blowing down the trees all around us."
They waited, and it was well that they did so, for presently the wind started to whistle once more, growing louder and louder. A small tree branch came down on them, and then came a crash that made them both jump.
"It's coming this way!" yelled Phil. "The tree behind the rocks!"
"Get down!" cried Dave, and threw himself flat.
Both boys crouched as low as possible. They heard the tree bend and crack. Then came a tremendous crash, and they felt one of the rocks moving.
"Maybe we'll be crushed to a jelly!" groaned the shipowner's son.
There was no time to say more, for an instant later the tree came down, directly over the top of the opening. Several small branches thrust themselves down upon the lads, pinning them to the bottom of the crevice. The rocks trembled, and for the moment the boys were afraid they would be crushed to death, as Phil had intimated.
"Safe, Phil?" asked Dave, as the rocking of the stones and the big tree ceased and the wind seemed to die down once more.
"I—I guess so! A tree limb is on my back, though."