Russell's Attic Series by SL Huang
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Russell's Attic #1

Zero Sum Game
SL Huang
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. She can take any job for the right price and shoot anyone who gets in her way.As far as she knows, she’s the only person around with a superpower . . . but then Cas 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.Someone who’s already warped Cas’s thoughts once before, with her none the wiser.Cas should run. Going up against a psychic with a god complex isn’t exactly a rational move, and saving the world from a power-hungry telepath isn’t her responsibility. But she isn’t about to let anyone get away with violating her brain — and besides, she’s got a small arsenal and some deadly mathematics on her side. There’s only one problem . . .She doesn’t know which of her thoughts are her own anymore.
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Russell's Attic #3

Root of Unity
SL Huang
Back for book three . . .Cas Russell has always used her superpowered mathematical skills to dodge snipers or take down enemies. Oh, yeah, and make as much money as possible on whatever unsavory gigs people will hire her for. But then one of her few friends asks a favor: help him track down a stolen math proof. One that, in the wrong hands, could crumble encryption protocols worldwide and utterly collapse global commerce.Cas is immediately ducking car bombs and men with AKs -- this is the type of math people are willing to kill for, and the U.S. government wants it as much as the bad guys do. But all that pales compared to what Cas learns from delving into the proof. Because the more she works on the case, the more she realizes something is very, very wrong . . . with her.For the first time, Cas questions her own bizarre mathematical abilities. How far they reach. How they tie into the pieces of herself that are broken -- or missing.How the new proof might knit her brain back together . . . while making her more powerful than she's ever imagined.Desperate to fix her fractured self, Cas dives into the tangled layers of higher mathematics, frantic for numerical power that might not even be possible -- and willing to do anything, betray anyone, to get it.
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