Seventeen-year-old Agnes Wilkins is about to make her debut into 1815 London society at a lavish party, where she meets Lord Showalter, a wealthy and eligible man who collects Egyptian antiquities and who is hiding a dangerous secret.

Cara doesn't want to go to college; she wants different kinds of challenges. She is growing distant from her friends and hasn't spoken to her father in eons. And her ex-boyfriend and fellow climber, Nat, broke up with her over text. Then Cara hears that her father is missing. Trying to track him down, she discovers a trail of clues centering around the history and life of legendary mountaineer, outdoorsman, author, and all around dirtbag, Beckett...