Peter Kim

In this fourth and second-to-last book in the series, Cass and Max-Ernest set out on separate, yet equally dangerous, adventures.

Cass finds herself alone and disoriented, a stranger in a dream-like, medieval world. With the help of a long-lost relative, she begins to uncover clues and secrets--piecing together her family's history as she fights her way back to the present world.

Meanwhile, back home, Cass is at the hospital in a deep coma. Max-Ernest knows she ate ...

In this fifth and final (I swear!) audio book in my saga of secrets, a class trip to the local natural history museum turns dangerous, or perhaps deadly--and I don't mean in the bored-to-death way--when Cass accidentally breaks a finger off a priceless mummy. Forced to atone for this "crime" of vandalization, Cass and her friends Max-Ernest and Yo-Yoji go to work for the mummy exhibit's curator, only to be blamed when the mummy disappears. ...