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

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.

A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.

It's gone! Oliver's boring blue beach bag is gone. Inside are his clothes, shoes, and a special seashell. All he has left is his beach ball. This is a perfect case for Nate the Great and his trusty dog, Sludge. But they don't find many clues in the sand and surf. What trail should they follow next? Follow the leader to find out!

Nate the Great and his dog Sludge try to track down Claude's missing Stegosaurus stamp. Includes related facts, recipes, and activities.

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

Frank and Joe race against time to retrieve a scientist’s top-secret invention before thieves get their hands on it. But the young detectives soon discover that they are involved in a mystery far greater in scope than just safeguarding the invention. When Joe is kidnapped, this incident starts Frank of on a chase that could end disastrously for him and his pals.

Two brothers take summer jobs at a department store where a series of peculiar events brings them under suspicion.

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

At a doll collector's request for help, a young sleuth searches for an old album, a lost doll, and a missing gypsy violinist.