Junkyard Queen (Alexa O'Brien Huntress Book 12)

Book 12:

With her hands full it’s tough for Alexa to moderate Willow’s continuous descent into darkness. A demon unobserved quickly takes advantage of going unnoticed. However, he’s not the only one. Change is coming for many. The queen of the city will have to stop being so reluctant to reign. Because if she doesn’t, someone else will. And that won’t end well for anybody.