The Mirror World Books 4 to 6 - Rain Harlow

Key allies rescued from the darkness, the Goddess of Mirrors and Fate turns to the bright, new future she dreams of. The road ahead is long, but she runs to it all the same. Time is always short. A brand new [Domain] awaits capture, and that there are obstacles in the way is never in question. Sometimes, the best policy was to hit them head-on, the best tactic to take the fight to your enemies first.