"Count me in!" panted Roger.
"Also yours truly!" added Dave.
And then the four, lining up side by side, struck out fiercely, each doing his level best to touch the rock first. It was a neck-and-neck race, and in a moment more four hands went up on the rock at practically the same time.
"I win!"
"Not much, my hand was here first!"
"Oh, look!"
"Don't climb up on that rock!"
"What's the trouble?"
"What is it?"
"It's a snake, and a big one!" yelled Dave. "Back away from the rock, boys, just as fast as you can!"