Ron Roy

When Dink, Josh, and Ruth Rose visit a dude ranch in Montana, they find themselves with another mystery to solve, this one involving the theft of money from the ranch's safe and of a large gold nugget that Josh had found.

Dink, Josh, and Ruth Rose help catch the thieves who have stolen the treasure from the museum's mummy exhibit.

Dink Duncan and his two friends investigate the apparent kidnapping of famous mystery author Wallis Wallace.

Dink and his friends use their detective skills to locate a giant emerald missing from a statue delivered to Uncle Warren's museum in New York City.

When the umpire at the baseball game fundraiser is accused of stealing a collection of autographed baseballs, Dink, Josh, and Ruth Rose try to prove his innocence.

KC and her friend Marshall accompany KC's stepfather, the United States President, to remote Camp David, where they find clues that point to either ghostly or criminal activity.

While visiting Thomas Jefferson's home, Monticello, presidential stepdaughter KC Corcoran and her friend Marshall investigate the theft of a box of toy horses given to Jefferson by his grandchildren.

When the skeleton in the school nurse's office disappears, Dink and his friends, Josh and Ruth Rose, try to find the missing bones.

Dink, Josh, and Ruth Rose help catch the thieves who have stolen gold from Sammi's parents, the king and queen of Costra.

When the guests of the Shangri-La Hotel are scared away by a white-haired female ghost, Dink and his friends investigate the mystery.