
Critical Point (2020) 
 S.L. Huang 

This is the third novel featuring Cas Russell, a private detective with superhuman mathematical abilities that allow her to fight with remarkable precision, and to quickly survey a crime scene.
There... (more) 


Null Set (2019) 
 S.L. Huang 

Cas Russell, the mathgenius mercenary, returns in the sequel to Zero Sum Game. As before, she can perform calculations quickly and accurately enough to determine exactly how she needs to swing, kick,... (more) 


Zero Sum Game (2018) 
 S.L. Huang 

Cas Russell is violent and amoral. She is also really good at math. Her understanding of physics and quick work with vectors allows her to do things like ricochet a tossed cell phone just right to knock... (more) 
