Tombs Of Atuan - The second book of Earthsea

Tenar is chosen as high priestess to the ancient and nameless Powers of the Earth, and everything is taken from her - home, family, possessions, even her name. She is now known only as Arha, the Eaten One, and guards the shadowy, labyrinthine Tombs of Atuan. Then a wizard, Ged Sparrowhawk, comes to steal the Tombs' greatest hidden treasure, the Ring of Erreth-Akbe.

Tenar's duty is to protect the Ring, but Ged possesses the light of magic and tales of a world that Tenar has never known. Will Tenar risk everything to escape from the darkness that has become her domain?