Upgrade | Blake Crouch

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.
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.