Dylan and his sisters have some ideas about how to make Snowdonia Oasis Auto Marvel into a more profitable business, but it is not until some strange men arrive in their small town of Manod, Wales with valuable paintings, and their father disappears, that they consider turning to crime.
Leo, the son of the maintenance man of the Whippet Hotel, opens a series of cryptic boxes which reveals hidden floors, strange puzzles, and unexpected alliances and lead him on an adventure to save the building and his future.
Horton, an upstanding kitchen boy in a castle in nineteenth-century England, becomes embroiled in a mystery surrounding a series of thefts, which is also connected to the pursuit of a very eligible and wealthy young lady's affections.
When Josh, his parents, grandfather, and eight-year-old brother move into the old Tilton House, they discover such strange things as talking rats, a dimmer switch that makes the house invisible, and a powder that makes objects grow.
Wilbur's best friend describes a day at the Robinson house where he joins in the search for Grandfather Robinson and his missing false teeth, and meets the rest of the oddball family.
