Catholic-schooled seventh-graders Sophie, Margaret, Rebecca, and Leigh Ann help an elderly neighbor solve a puzzle her father left for her estranged daughter twenty years ago.

"The haunting, vivid story of a nun whose past returns to her in unexpected ways, while she investigates a mysterious death and a series of harrowing abuse claims. A young nun is sent by the Vatican to explore allegations of misconduct at a Catholic school in Iceland. During her time there, on a gray winter's day, a student at the school witnesses the school's headmaster, Father August Frans, fall to his death from the church tower. Two decades later,...

"Gaining courage from Joan of Arc, fourteen-year-old Mary Murphy navigates the waters of Chesapeake Bay in a submersible built with her friend, Kip, escaping the home where her violent father has just returned from prison. Includes facts about domestic violence and submersibles."-- Publisher's description.

Sparking enthusiasm for a play about the founding of their North Carolina mountains Catholic girls' school, a charismatic ninth grader and her recently orphaned best friend set in motion a series of events that have decades-long ramifications.