Cas Russell, antisocial mercenary, has decided to Fight Crime. After all, she has a real-life superpower: with her extraordinary mathematical ability, she can neuter bombs or out-shoot an army.

But Cass own power also has a history, one she cant rememberor control. One that's creeping into her mind and fracturing her sanity...just when shes gotten herself on the hit list of every crime lord on the West Coast. And her best, only, sociopathic friend.

Forget saving the worldCas may not even be able to save herself.