ROOT OF UNITY will be out September 30!


HOLY CATS FOLKS LOOK HOW AWESOME THAT COVER IS!  It is my FAVORITE COVER YET.  Credit as always is to my wonderful cover designer, Najla Qamber.

My first readers tell me this is also the best book in the series yet.  Feedback included “SOOO EXCIITINGSAUUCE” and “WHEN IS NEXT BOOK?”  To answer, next book is done and already through its first round of beta, and will likely release in spring of 2016. \o/

So what is this excitingsauce book about?  Here is the blurb!


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.


Root of Unity is the third installment in the Russell’s Attic series, following Zero Sum Game and Half Life.  Do you need to have read the first two books to enjoy this one?  Probably not, but it helps.  The plot here stands alone pretty well, but the relationship arcs have been building since book 1 and there are references to things that happened in books 1 and 2.

PREORDER ROOT OF UNITY NOW!  ON AMAZON OR ON AMAZON UK!  It will have a 9/30 release date on all the non-Amazon places, too — preorder links from Apple and Kobo coming soon.


2.LadiesDayOut.v1amazonOH HEY do you want more Russell’s Attic content without having to wait?  I’ve written a new novelette called “Ladies’ Day Out,” in which Cas teaches Pilar to shoot and hilarity ensues.  It takes place between books 2 and 3 but can be read before or after book 3.  It’s free for mailing list subscribers and will be available at retailers September 1.

About the author

SL Huang (aka MathPencil)
SL Huang (aka MathPencil)

SL Huang justifies an MIT degree by using it to write eccentric mathematical superhero books. Debut novel: Zero Sum Game, a speculative fiction thriller.
Twitter: @sl_huang

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