The novel is a gripping mystery that follows Troy Chance, a freelance writer, who impulsively dives into Lake Champlain to rescue a young boy who has fallen from a ferry. As she becomes entangled in the boy's life, she discovers that he is the victim of a complex and dangerous situation involving kidnapping and deceit. Determined to protect him, Troy embarks on a perilous journey to uncover the truth, confronting her own fears and vulnerabilities along the way. The story weaves themes of trust, identity, and resilience, keeping readers on edge as Troy navigates the murky waters of human relationships and hidden motives.