Fate — Jennifer Lynn Barnes

For the past two years, Bailey Morgan has lived a double life: high school student by day, ancient mystical being by night. As the third Fate, Bailey literally controls the fate of the world, but as Plain Old Bailey, her life is falling apart. She's got a tattoo that was supposed to be temporary (but isn't), friendships that were supposed to last forever (but might not), and no idea what her future holds after high school graduation.

Then Bailey meets the rest of the Sidhe, an ancient race defined by their power, beauty, and a sinister habit of getting what they want at any cost. Before Bailey knows it, she's being drawn into an otherworldly web more complicated than anything she weaves as a mortal Fate.