"Instantly engaging, constantly suspenseful, ultimately poignant and satisfying. Loved it!"--Diana Gabaldon, author of the #1 New York Times bestselling Outlander series When fragile, sixteen-year-old Hope Walton loses her mom to an earthquake overseas, her secluded world crumbles. Agreeing to spend the summer in Scotland, Hope discovers that her mother was more than a brilliant academic, but also a member of a secret society...