Forerunner

Allabva is content with a quiet life, tending her mother's orchard and nurturing a budding romance. Though legends of the Nightshade Unicorn, a frightful beast, echo in the shadows, Allabva pays them no heed. Unicorns-Nomord-are peaceful, lighthearted, and all female.
Until a male Nomord, the Forerunner, singles her out, summoning her on an urgent mission to aid the great Shrongelin-another being from legend-and save the world from an impossible, evil menace.
Now, she races against time and faces the realization that what she didn't know can hurt her-and threaten the entire world.