The Banshee by Helen Scott

It was supposed to be a romantic weekend vacation, not a get-kidnapped-by-a-god vacation.

Robin had everything she ever wanted, and when Hal surprised her with a last-minute vacation to Ireland and the Samhain festival she couldn’t have been more excited. What she didn’t expect was being kidnapped by an evil, bored, and slightly crazy Celtic death god. Now, she’s stuck trying to escape his realm and get back to the love of her life, or risk losing her soul.
All Hal wanted was to give Robin a once-in-a-lifetime experience at the fire festival. When she disappears from under his nose he’s forced to rely on strange companions for help. The last thing he needs is Zeus showing up.
Can Robin find her way back to Hal and prove that they are truly soul mates? Or will Zeus destroy the only happiness she’s ever known?