When a thief steals money from her mom's Garbage Busters project, Stephanie, a sixth grader, identifies herself as "Stevie Diamond, Detective" and sets off to find the culprit.
A rebus story in which Scooby-Doo and the gang think the "haunted" house they created for Halloween really is haunted when the faces on their jack-o'-lanterns change.
While visiting his friend Jeannie's eccentric Aunt Rosebud in a boarding house that may be haunted, ten-year-old Chad comes across a mystery involving a missing diamond bracelet.
Leroy "Encyclopedia" Brown, America's Sherlock Holmes in sneakers, continues his war on crime in ten more cases, the solutions to which are found in the back of the book.
Siblings Grant and Christina spend their summer vacation exploring the Great Lakes with their grandparents, Mimi and Papa, but along the way, the family encounters mysteries involving shipwrecks, haunted lighthouses, and island intrigue.
Christina, Grant, Raven, and Hunter arrive in north Alaska for the Iditarod Trail dogsled race just in time to pursue a runaway team with a renegade musher.