Blake Crouch, the author of Dark Matter and Recursion, delivers a mind-bending thriller about human enhancement taken to its limits. Logan Ramsay discovers his genetic code has been altered, granting him extraordinary cognitive abilities—sharper focus, faster processing, enhanced memory, and deeper sleep. As he begins perceiving the world and those closest to him in radically new ways, he grapples with the terrifying reality that he's become something more than human, and possibly less.
