From the Eric Hoffer Book Award–recognized author of Fixed Point comes the return of Rachel Quinn.

Rachel was supposed to be taking a break in Florida after the strange events of Fixed Point. But when her niece calls for help at a veterinary conference, Rachel is pulled into an investigation involving a series of deadly poisonings.

When a powerful hurricane strikes—leaving the attendees trapped inside—the investigation quickly escalates into cartel violence, corporate conspiracy, and something far more unsettling.

As the storm worsens, survival may depend on understanding a threat that doesn’t follow the rules of the world she knows. And Rachel must navigate shifting truths where nothing—and no one—is quite what it seems.

Not Who She Was is a dark, psychological thriller with a speculative twist for fans of Lauren Beukes and Blake Crouch. If you love thrillers that blend conspiracy, isolation, and unraveling realities, this one will keep you turning pages late into the night.