Sherlock Holmes and Dr. Watson travel to the bleak wastes of Dartmoor to solve the mystery surrounding the late Sir Charles Baskerville and a ghostly hound. Illustrated notes throughout the text explain the historical background of the story.
Lucy has a summer job teaching riding to the Mosedale children of their estate on Shelby Island. There is only one problem--somebody is trying to kill one of the Mosesdales and there is talk of a hidden treasure in the house.
When Nutty investigates the disappearance of the school Christmas fund from his locker, he and his friends run into a bunch of thieves as well as a more surprising solution.
While helping restore the cemetery of the old Baptist church, eleven-year-old Raisin solves the mystery surrounding the founding of her home town and gains pride in her family's past.
At the world-famous dolphin research center in Hawaii, the Hardys learn that a dolphin has a mysterious injury and one of the researchers has disappeared.
At her new school Marlee is assigned the locker of Suellen, who had mysteriously disappeared. After a horrifying vision, Marlee knows she must find Suellen -- even if it costs her life.