Earths - The First Four Books - Ursula K Le Guin

Ged is but a goatherd on the island of Gont when he comes by his strange powers over nature. Sent to the School of Wizards on Roke, he learns the true way of magic and proves himself a powerful magician. And it is as the Archmage Sparrowhawk that he helps the High Priestess Tenar escape the labyrinth of darkness.

But over the years, Ged witnesses true magic and the ancient ways submit to the forces of evil and death. Will he too succumb, or can he hold them back?