Many Waters by Madeleine L'Engle [FIRST EDITION / 1986]
FIRST EDITION  FARRAR STRAUS GIROUX
Hardcover with dust jacket in excellent condition. Some extremely minor shelf wear to dust jacket.
The fourth and final book in Madeleine L'Engle's classic Time Quintet, that began with A Wrinkle in Time.
Sandy and his twin brother, Dennys, are the practical, down-to-earth members of the Murry family. They have never paid much attention to their scientist parents' talk of highly theoretical things like tesseracts and farondalae. But now something has happened to Sandy and Dennys that drastically stretches their powers of belief. And, when disaster threatens the oasis where they have made their home, can they find a way back to their own time?