"It's going to storm like fun," continued Will, with growing apprehension.
"And the first thing we've got to do," his companion told him, "is to look for shelter. Under these big trees we might find a place to keep dry, for there's one that's hollow right now; but the danger of its being struck by lightning is too great for me to risk."
"Whew! We're in for it, I expect!" cried Will, who apparently had received quite a severe shock upon making this sudden discovery, when up to the time that loud thunder clap startled them neither of the boys had suspected anything.
Frank began to look hastily about him. He knew what he wanted to find above all things, and fortunately the country around that section was capable of producing such a safe shelter.
"Hurry along this way, Will!" he called out. "If I remember rightly I noticed some outcropping ledges back a little bit. We may be lucky enough to find shelter under a shelf of rock."
"That's a good idea, Frank," admitted Will, as he tried to keep close on the heels of his hurrying comrade.
"If the rain will only hold off ten minutes, even less, we ought to get to that rocky section, unless I miss my guess," Frank threw back over his shoulder.
They pushed on with all their vim. Meanwhile it grew very dark and forbidding. Will could not remember ever to have seen the day swallowed up in the gathering shades of night so quickly before. It appalled the boy, for he did not possess the same unconquerable nature as Frank.
One crash of thunder followed another in rapid succession. The very earth under their flying feet seemed to quiver with the concussions. Lightning shot downward with such vivid flashes that it fairly blinded them; so that Will's soul was filled with awe.
"Frank, oh, Frank!" cried the boy in the rear.