Nightingale the Duskblader (Duskblader, #1)

No matter how fast you are, you can’t outrun your shadow.
Moira Nightingale was an accomplished mage, an elite member of the Gray Council the most elusive and secretive of Councils in the magical community, until she was betrayed and left for dead.

On that cold night, she formed the darkest of pacts, she unleashed the rage of vengeance and became a Nightmare, bonding with an ancient creature to save her life, and curse her existence.

That night she became a Duskblader, a wielder of gloom, surrendering to a life of darkness, shadow, and retribution.

That night she was reborn and vowed to end the lives of those who wanted her dead.

That night she became a monster.