Dink, Josh, and Ruth Rose investigate a mysterious man in black who Josh believes is a vampire.

While visiting Wallis's castle, Dink and his friends investigate strange noises that lead them to a dangerous secret.

Dink and his two friends help Lucky find the culprit who stole Lucky's winning lottery ticket.

Dink, Josh, and Ruth Rose investigate the disappearance of a valuable racehorse that Dink's uncle and his friend, Forest Evans, have just bought and entered in a race at Saratoga.

While investigating a mystery on New Year's Eve, four friends encounter a big surprise.

Dink and his friends investigate why pets, like Mrs. Davis's canary, Mozart, are mysteriously disappearing all over town.

When someone steals the money the town has been collecting to help the ducks, Josh and his friends try to find the thief.

It's Valentine's day in Green Lawn! But Dink, Josh, and Ruth Rose just aren't feeling the love this year. Valentine's Day was so much more fun when they were little. Then they each start getting messages and clues from a secret admirer! Can the kids figure out who wants to be their valentine?

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

When KC and Marshall see lights flickering at night in the Washington Monument, their investigation turns up a monkey, a hole in one of the monument stones, and a hundred-year-old mystery. Late at night KC and Marshall are sleeping out on the White House lawn when they see suspicious lights flickering at the top of the Washington Monument. If that's not strange enough, the next day a monkey is found inside the building! KC and Marshall set off on...