Confessions of a Wicked Fae by Jenna Wolfhart

My normal life as a fae royal guard doesn’t feel so normal anymore. It hasn’t since I met my mate, the cocky, seductive King of the Court of Wraiths.
My search for a way to undo the prophecy has come up empty. I’m still as destined as ever to kill Lugh one day. That’s why I’ve kept my distance.
Until now. He needs my help. And I can’t turn him down. A new threat looms in the Edinburgh streets. If we don’t stop it, my mate-murdering prophecy will be the least of our worries.
Lugh could lose his very soul. And if that ever happens, there will be nothing to stop him from unleashing the nightmare wraiths from the darkest part of Faerie.
The mortal realm will never survive.