A unique spin of the greek myth of Persephone, but occurring in present day. The story itself goes back in forth in time. Not a long time, and does it without unpleasant repercussions for the reader. It's a love story. Nikki falls in love with Jake. Jake breaks her heart. Nikki gets entrapped with Cole's promises of making the pain go away. They go underground, to the Everneath, and Cole feeds on her for a century. A century in the Everneath is only 6 months on Earth. When the century is over, Nikki hasn't aged, she remembers Jake. She is give 6 months of the surface. At the end she must decide on an eternity in the Tunnels or the life of the Everliving. The only thing Nikki wants is Jake back.I found this story captivating. I loved the going back and forth in time. I've experienced this before, in other books, but the transition was so smooth, and made so much sense, that it wasn't a distraction. I look forward to reading more from this author, Brodi Ashton.