When Emily Elizabeth is accused of stealing Jetta's gold medal, Clifford never doubts her innocence and, with his fellow doggy detectives, finds the real thief.
Scooby-Doo and his friends from Mystery, Inc. go to Australia on vacation and try to determine if real vampires are haunting the Vampire Rock music festival.
The world-famous ducktective investigates the disappearance of her nephew, Inspector Willard Widgeon, during a secret mission in the Himalayas, and uncovers a dastardly plot that could destroy Mt. Everest.
In England to discover the secret of the Silver Knight in Bromley Hall, Carson Drew and his daughter Nancy encounter Frank and Joe Hardy in their hotel and the four proceed to unravel the mystery. The reader's choices determine the direction of the investigation.
While investigating the source of a strange disease, Ricky and his computer friend ALEC uncover a case of computer fraud, chemical pollution, and the illegal production of explosives.
ALEC, a disembodied personality inside the circuits of a giant computer system, helps Ricky Foster investigate his mother's mysterious disappearance in a forest wilderness.
In Austria to watch a mutual friend participate in an ice skating competition, the Hardy brothers and Nancy Drew find themselves involved in a dangerous international adventure when their friend is kidnapped after winning a gold medal. The reader's choices determine the outcome of the plot.