former scoutmaster when I was a kid:

"Once some scouts was on a campout in Arizona when one of em seen a big cave. Thats when they started hearing a scary sound like an Indian Ghost chanting or something like that. They decided to camp by the cave that night. When they was all asleep, suddenly a creepy light shoned from the cave and the chanting noise was back. All them scouts was awake bolt upright and thats when they seen an Indian Ghost come out of the cave. The Ghost possessed and killed each of em in turn and they was never heard from agin. But one of em left a book behind describing what had happened. He wrote it while he was waiting to be posessed and killed. Sometimes if you go by that cave you can still hear the Indian Ghost."