During another adventure with the magic mirror the members of the Magic Attic Club find themselves at summer camp on a scavenger hunt that may lead them to a ghost.
Transported by the Magic Attic to a cruise ship called the Jewel of the Sea, five friends meet a haughty English girl named Lady Ashley and help her when her parents forget her birthday.
Dejected when the class hayride that she helped organize is cancelled because of rain, Megan consoles herself with a trip to Ellie's attic where the magic mirror transports her to ancient Greece.