Broken Blade (The Rune Blade Trilogy, Book 3)

As the dark powers prepare a new assault on the Isle of Celi, using stolen magic to rip down the veil of enchantment protecting the island, Brynda, daughter of Keylan, must teach her Rune Blade to sing death's song, or Maedun's Somber Riders will claim the island for their own. Original.