The Guardians of Dreamdark: Windwitch by Laini Taylor

Step into the world of Dreamdark, a place of bright magic and unimagined danger where one determined faerie must fight to defeat a darkness that threatens to destroy the world...

Magpie Windwitch has always felt different to other faeries. While they prefer to live in seclusion, deep in the forests of Dreamdark, she would rather travel on the wind with her faithful gang of crows, exploring the world and dreaming up bold magic.

When an ancient evil rises, Magpie is the only one with determination enough to stand in its way, fighting back where others choose to flee.

But how can a single faerie, even with the help of her friends, hope to defeat the impenetrable darkness of the Blackbringer?