When Annie tells him about her missing painting, Nate the Great and his trusted companion, Sam Spade, set out to investigate, gather clues, and solve the mystery.

When King's favorite blue ball goes missing, he and Kayla must put together clues to figure out where it went.

Cory the Corythosaurus is excited about playing in the school concert, but when the morning arrives his trumpet is missing--and it is up to the Dino Detectives to solve the mystery of who took it.

Scooby and the gang were at the Coolsville Robot Expo. Professor Tinkerwell, Velma's old teacher invites them to be his guests. After one of the Monsterbots attacks the crowd, Mystery Inc. sets a trap to find out who is responsible for the attacks on both the crowd and themselves.

This book, with pictures as tools for learning new words, describes how Scooby and the gang solve the disappearance of the magician's hat.

Investigating the mysterious footprints of a home invader who their inventor friend believes is trying to steal his ideas, Hamster Holmes and Dr. Watt work to identify the animal responsible for the footprints before it is too late.

Scooby-Doo and his friends solve eight mysteries.

Cam uses her photographic memory to find a shopping list that her dad lost at the library.

Charlene's story is voted best in the class, but when she goes to read it at Parent's Night, it has vanished from her folder.