New York: Farrar, Straus, Giroux, 1978. First printing.
The third volume in the Murray family trilogy which began with A Wrinkle in Time and continued with A Wind in The Door.
Fifteen-year-old Charles Wallace embarks on a time traveling journey, on the back of a flying unicorn named Gaudior, helped by the psychic promptings of his sister Meg, in a battle to save the Earth from the ravages of a mad dictator.
Hardcover, in a slightly worn, unclipped jacket. SOLD