Tehanu: The Last Book of Earthsea is a fantasy novel by the American author Ursula K. Le Guin, published by Atheneum in 1990. It was the fourth novel set in the fictional archipelago Earthsea; a sequel following almost twenty years after the Earthsea trilogy (1968–1972); and not the last, despite its subtitle. It won the annual Nebula Award for Best Novel and the Locus Award for Best Fantasy Novel.