Someone has been stealing and leaving behind little green sneakers, so Bradley, Brian, Nate, and Lucy trail their new teacher, who wears the same shoes in normal size.

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

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

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.

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.

Josh and his two friends look for the person who stole a peregrine falcon from its nest.

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

Dink, Josh, and Ruth Rose head to Florida where they uncover a scam at a local space memorabilia attraction.

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