Accompanying their father on a project that takes them to a ghost town in Nevada, teenage twins Sara and Sam discover peculiar nocturnal activities and clues to a hidden treasure of gold nuggets.
Staying in the Moravian community of Bethlehem, Pennsylvania, when the American Revolution breaks out, fifteen-year-old Kate and her friends demonstrate how a peaceful people can help alleviate the suffering brought on by war.
Teenage twins Sara and Sam investigate a young Vietnamese refugee hiding in an abandoned cabin and the mysterious disappearance of thoroughbred stallions from a neighbor's horse farm.
The summer 15-year-old Betty Jo spends working in a craft village in the West Virginia mountains, she becomes involved in a mystery which, when solved, exonerates her father from a crime of which he has been falsely accused.
