When Henry Day is seven years old, he is kidnapped by ageless beings called changelings, who leave another child in Henry's place, a boy who will be his duplicate. Haunted by memories, both boys are driven to search for the keys to whom they once were before they switched places.
"Ever since he nearly drowned in the ocean three years earlier,10-year-old Jack Peter Keenan has been deathly afraid to venture outdoors. Refusing to leave his home in a small coastal town in Maine, Jack Peter spends his time drawing monsters. When those drawings take on a life of their own, no one is safe from the terror they inspire. His mother, Holly, begins to hear strange sounds in the night coming from the ocean, and she seeks answers from the...