Meet Pat and Patty Flaugherty (pronounced "flair-tee"), teenage fraternal twins who have a penchant for getting themselves involved in mysteries. They don't plan to become professional detectives, but never being ones to dismiss a challenge, they attack these mysteries wholeheartedly until they resolve them.
As a team, they each bring their unique strengths to the investigations: Patty's keen eye for details and Pat's ability to "read" people. But with very different personalities, they are often at odds with each other during the process. Pat is headstrong and can be impulsive; Patty is levelheaded and practical, although sometimes too critical of her brother.
Pat and Patty Flaugherty and their friends encounter another mystery when they are asked to help Bob Daily's sister, Barb, and her husband, Rev. Doug Alexander, by working at their church-run summer camp in the mountains. The camp is now being used to help inner-city children and at-risk youth learn valuable life lessons.
A series of incidents at the camp leads the twins to discover secrets about an enigmatic cult that lives on the mountain, and they also uncover a ring of thieves who have been targeting the properties of nearby wealthy landowners, all while Lost on Black Mountain.
