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NEW YORK TIMES BESTSELLER - "If Michael Crichton had written a superhero novel, it would look a lot like Upgrade."--The New York Times Book Review

"You don't so much sympathize with the main character as live inside his skin."--DIANA GABALDON, #1 New York Times bestselling author of the Outlander series

"Mysterious, fascinating, and deeply moving--exploring the very nature of what it means to be human."--ALEX MICHAELIDES, #1 New York Times bestselling author of The Silent Patient and The Maiden

ONE OF THE BEST BOOKS OF THE YEAR: Time, She Reads

The mind-blowing new thriller from the New York Times bestselling author of Dark Matter and Recursion--currently in development as a motion picture at Steven Spielberg's Amblin Partners

"You are the next step in human evolution."

At first, Logan Ramsay isn't sure if anything's different. He just feels a little . . . sharper. Better able to concentrate. Better at multitasking. Reading a bit faster, memorizing better, needing less sleep.

But before long, he can't deny it: Something's happening to his brain. To his body. He's starting to see the world, and those around him--even those he loves most--in whole new ways.

The truth is, Logan's genome has been hacked. And there's a reason he's been targeted for this upgrade. A reason that goes back decades to the darkest part of his past, and a horrific family legacy.

Worse still, what's happening to him is just the first step in a much larger plan, one that will inflict the same changes on humanity at large--at a terrifying cost.

Because of his new abilities, Logan's the one person in the world capable of stopping what's been set in motion. But to have a chance at winning this war, he'll have to become something other than himself. Maybe even something other than human.

And even as he's fighting, he can't help wondering: what if humanity's only hope for a future really does lie in engineering our own evolution?

Intimate in scale yet epic in scope, Upgrade is an intricately plotted, lightning-fast tale that charts one man's thrilling transformation, even as it asks us to ponder the limits of our humanity--and our boundless potential.

Blake Crouch is a bestselling novelist and screenwriter. His novels include Upgrade, Recursion, Dark Matter, and the Wayward Pines trilogy, which was adapted into a television series for FOX. Crouch also co-created the TNT show Good Behavior, based on his Letty Dobesh novellas. He lives in Colorado.