Zero Sum Game

In Zero Sum Game, Cas Russell is a mathematical genius with extraordinary abilities—she can calculate trajectories, physics, and probabilities faster than a computer. These skills make her an unbeatable fighter and a top-notch retrieval specialist who always gets the job done. But when Cas takes on a job to rescue a woman from a drug cartel, she discovers that her world isn’t as logical as she thought. Mind manipulation, secret organizations, and buried memories challenge her trust in math—and in herself. As she digs deeper, Cas realizes that someone may have been controlling her all along. Blending high-octane action with sharp intelligence and moral ambiguity, Zero Sum Game is a thrilling science-fiction novel that explores the boundaries between logic, emotion, and free will.