Six weeks after her arrival on the Surface, Evelyn Winters is no closer to unlocking the memories lost in her subconscious than she was when she first came. Isolated in a strange new society, Evie has only Gavin Hunter to remind her of who she once was.Even with a clean slate though, it's easy to see that Evie doesn't fit in on the Surface. And as her differences make her feel more and more alone, she can't help but yearn for that place she doesn't remember: the isolated city hidden in the depths of the ocean. Elysium. Home. She can't exactly tell Gavin what she's feeling. Not when he's the one who helped her escape Elysium in the first place, and has the scars to prove it. Though the doctors say otherwise, Gavin believes that Evie just needs time...until her ever-elusive memories begin to collide with reality. People and images from her past appear in the most unlikely places, haunting her, provoking her... and making her seem not only strange but dangerous.Evie and Gavin can't wait around for those memories to return. They'll have to journey across the Outlands of the Surface to find help, and in the end, their search may just lead them back to the place where it all started.