The Blue Sword1800
by Robin McKinley
This is the story of Corlath, golden-eyed king of the Free Hillfolk, son of the sons of the Lady Aerin.
And this is the story of Harry Crewe, the Homelander orphan girl who became Harimad-sol, King's Rider, and heir to the Blue Sword, Gonturan, that no woman had wielded since the Lady Aerin herself bore it into battle.
And this is the song of the kelar of the Hillfolk, the magic of the blood, the weaver of destinies...
--back cover
— from OpenLibrary
30 editions at OpenLibrary