Rattle the Bones — Eric R. Asher

Much has been lost in the conflict with the Fae king and his allies, a conflict we hadn't known we were in until one of our own fell at his hand. And while a great Seal between realms may have been rebuilt, dark things slipped through in the chaos, creatures who would overrun this world. Our allies are many. Our enemies are terrible. And someone ate my last chimichanga despite the fact I had clearly marked it with a note that said it was mine.