Five people are dead. All of them deserved it — at least, that's what the headlines said.

A CEO who buried a toxic spill. A surgeon who falsified credentials. A pharma executive who priced a lifesaving drug out of reach.

Each death looked natural. A stroke. A heart attack. Early-onset dementia that moved impossibly fast.

FBI Behavioral Analyst Maya Castillo sees the pattern no one else can — because she's still carrying the scars of her last case. The deaths trace back to Nurture, a six-billion-dollar personalized supplement company. Their protein-folding AI designed the perfect capsule for every customer. Then someone redesigned it to kill.

The science is real. The proteins are engineered. And Maya is running out of time — because her thirteen-year-old daughter just asked to try the product.

Book 2 in the Maya Castillo Series — for fans of Michael Crichton, Blake Crouch, and Robin Cook.