The inner thoughts of those around her intrude upon every aspect of her life, threatening to turn it into chaos. All her life, she thought she was alone as a mind reader—a freak. Then a member of a secret organization called The Unseen suddenly introduces himself, and she’s immersed in a world she never knew existed. They teach her to hone her skills as a reader, but to what end? Secrets surround her, humming just out of reach, filling her with questions. Who are they? What do they do with their mind-reading abilities? In the end, just how far will Mackenzie go to be part of The Unseen?