While learning detective skills at a sleep-away camp, Dink and his friends undercover a real mystery involving stolen paintings.

Third-grader Dink and his detective friends hope to receive a big reward by finding the person whose video recorder picked up a picture of the local bank robber.

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

Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered to his house.

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

When Ruth Rose and her friends, vacationing in Florida, discover that her grandmother is about to invest in a project to recover sunken treasure, they stumble upon evidence that the entire plan may be a fraud.

While picnicking on Squaw Island, Dink, Josh, and Ruth Rose find a hundred-dollar bill, and when they return to explore further they find an entire cave full of money.

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.

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

Dink and his friends meet an exchange student, Sammi, who is actually the prince of an island country, hiding from those enemies who have kidnapped his parents and who may be after him as well.