The Eyes of the Amaryllis

Experience love and loss in this enchanting sea mystery from Natalie Babbitt, The Eyes of the Amaryllis, the basis for the 1982 movie adaption of the same name.
When the brig Amaryllis was swallowed in a hurricane, the captain and all the crew were swallowed, too. For thirty years the captain's widow, Geneva Reade, has waited, certain that her husband will send her a message from the bottom of the sea. But someone else is waiting, too, and watching her, a man called Seward. Into this haunted situation comes Jenny, the widow's granddaughter. The three of them, Gran, Jenny, and Seward, are drawn into a kind of deadly game with one another and with the sea, a game that only the sea knows how to win.
The Eyes of the Amaryllis is a 1977 New York Times Book Review Notable Children's Book of the Year.