The explosions have never been bigger as math-genius mercenary Cas Russell returns in the next blockbuster adventure from S. L. Huang, CRITICAL POINT, a breakout science fiction thriller series for fans of John Scalzi and Greg Rucka.

Cas Russell has stopped a shadow organization from brainwashing the world, and discovered that her past was deliberately erased and her superhuman abilities deliberately created.

And that's just the start. When a demolitions expert targets Cas and her friends, and the hidden conspiracy behind Cas' past starts to reappear, the past, present and future collide in a race to save one of her dearest friends.