
A World Full of Mystery and Adventure Awaits
Twin sisters Maddie and Jo Livingston have spent their lives travelling the world with their famous archaeologist parents. But when the Livingstons’ work takes them on a mysterious yearlong excavation in Siberia, much too dangerous for two twelve-year-old girls, Maddie and Jo are whisked off to a castle in Switzerland, where they find themselves piecing together a mystery of their own.

