Assassin Witch - The Bonegates Series, #2

A forbidden love. A dying kingdom. A cruel queen. With the Successional behind me, two dangerous missions lie ahead. One: Find allies in the mafia-run realms of Faerie. Two: Kill the Queen of Buyan. I don't relish the latter, but her death would mean freedom and happiness for the fae of Lyonesse, people I care for. One, in particular, I might even be falling in love with. But the kingdom comes first.
So I must infiltrate Buyan and assassinate the most powerful queen in fae history. Easy, right .