A Soul for Trouble: The Soulbearer Trilogy, Book 1 (Unabridged‪)‬

When you're a witch named Trouble, chaos follows.

Arden Lesstymine (known to everyone as Trouble) likes attention as much as the next girl, but this is getting ridiculous. When an insane stranger is murdered at the inn where she works, Trouble becomes the next Soulbearer for the disembodied god of chaos, Loku. Yes, it comes with the ability to channel the god's limitless power, but at the cost of her sanity - literally. Now she has a sexy but cynical knight claiming to be her protector, a prince trying to seduce her to his cause (and his bed), and a snarky chaos god who offers a play-by-play commentary on it all, whether she wants to hear it or not. To make matters worse, a necromancer wants to capture the soul of Loku for his own dark purposes, and the only way he can get it is by killing her first.