Zero Sum Game by S. L. Huang

ZERO SUM GAME Best of Lists:
* Best Books of the Month at The Verge, Book Riot, Unbound Worlds, SYFY, & Kirkus
* The Mary Sue Book Club Pick
* Library Journal Best Debuts of Fall and Winter

A blockbuster, near-future science fiction thriller, S.L. Huang's Zero Sum Game introduces a math-genius mercenary who finds herself being manipulated by someone possessing unimaginable power...
Cas Russell is good at math. Scary good. The vector calculus blazing through her head lets her smash through armed men twice her size and dodge every bullet in a gunfight, and she'll take any job for the right price.
As far as Cas knows, she's the only person around with a superpower...until she discovers someone with a power even more dangerous than her own. Someone who can reach directly into people's minds and twist their brains into Moebius strips. Someone intent on becoming the world's puppet master.
Cas should run, like she usually does, but for once she's involved. There's only one problem...
She doesn't know which of her thoughts are her own anymore.
"Fresh and exciting... a great start to an exciting series-and an exciting career." -Boing Boing
At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.