Cousins Hannah and Jacie, known as Punkin and Boo, are at their grandparent's ranch in California for the summer. While exploring the old ranch, the girls stumble on a mystery that involves desperate crooks, the ghost of a long-dead Sioux war chief, a young Native American man on a mission to save his tribe, and secret tunnels and caves left over from an old Spanish Mission. Throw in a guardian angel who protects the girls from some evil spirits that want to bring the story to a bad end, and you have The Mystery of Ghost Dancer Ranch, the first in a series of faith-filled mystery adventures for young adults, featuring Punkin and Boo.