The light, when held into the dark break in the rock, revealed a landing about six feet down, but Jimmie was not in sight.

Presently, however, the alarmed boys heard his voice, coming up out of the darkness.
"Hey, there!" he said.

"Get a rope and a light! I'm on a toboggan!" "In a second," Harry replied.

"Are you falling ?" "No, I'm hangin' on with me toes!" was the reply.

"Hurry up, you fellers! I'll drop clear into the middle of the world if I let go!" Harry darted away to the outer chamber and brought a line from his camping outfit.