mystery and detective stories

The reader finds the clues and helps Bones and Scotson solve five crimes.

Nancy Drew and the Hardy brothers run into danger when they try to prevent the sabotage of an anti-pollution campaign. The reader controls the outcome of the story by choosing different ways of advancing the plot.

The reader is invited to solve six mysteries along with dog detective Sherluck Bones.

Christina's summer in a spooky, isolated Victorian house with her grumpy uncle turns into a ghostly adventure.

Twin sisters Mickey and Kate combine their skills to discover the explanation for a mysterious face that has appeared in a family photograph.

The reader must solve the mystery of Echo Lodge by choosing from various possible endings.

The reader must decide which ending to follow while on a mission to find a herd of horses who mysteriously vanished at the edge of the Grand Canyon.

Falsely accused of a robbery at the airport, the Hardy boys turn the tables on the real thieves by nabbing them in the act of committing another robbery.

Teenagers Frank and Joe Hardy set out to solve a ghostly mystery when the movie set on which they are working becomes the setting for strange happenings.

Staying in an old Victorian mansion while on a trip to San Francisco, Nancy investigates the "spirits" that are scaring people away.