"If I had a rope I might lower myself," went on the youth, with quiet determination. "But without a rope——"

A pounding of hoof-strokes on the grassy trail below the rocks caused him to stop and listen attentively.

"Somebody is coming. I'll see if I can get help!" he cried, and ran down to the trail, swinging his lantern over his head as he went. In ten seconds a horseman burst into view, riding a beautiful racing steed. The newcomer was a well-known leader of the land boomers, who rejoiced in the name of Pawnee Brown.

"Ai! Pawnee Brown!" cried Dick, and at once the leader of the land boomers came to a halt.

"What is it, Arbuckle?" he asked kindly.

"My father is missing, and I have every reason to fear that he has tumbled into an opening at the summit of yonder rocks."

"That's bad, lad. Missing? Since when?"

Dick's story was soon told, and Pawnee Brown at once agreed to go up to the opening and see if anything could be done. "It's the Devil's Chimney," he explained. "If he went over into it I'm afraid he's a goner."

A lariat hung from the pommel of the scout's saddle, and this he took in hand as he dismounted. Soon he stood by the edge of the black opening, while Dick again waved the lantern.

"You and the dunce can lower me by the lariat. I don't believe the opening is more than fifty feet deep," said Pawnee Brown.