Ursula K. Le Guin

Alder, a sorcerer and pot mender who is being haunted by dreams in which his dead wife breaches the barrier between the living and the dead, joins with Tenar and Tenahu in an effort to mend and save Earthsea.

When Sparrowhawk, the Archmage of Earthsea, returns from the dark land stripped of his magic powers, he finds refuge with the aging widow Tenar and a crippled girl child who carries an unknown destiny.