Secret to Somewhere: A Mystery at the Old Mission - Eloise E. Kraemer - Bog

Teen detectives, Justi Wallace and Christopher Williams are looking for an adventurous summer when they find more than they bargained for in a treasure hunt that takes them to the Old Mission State Park in Cataldo, Idaho. In the process of solving an old mystery, they learn a little about the history of Idaho and the people that helped to build it.