FBI Agent Cassidy Knox is still dealing with the trauma of her close call with a serial killer and the death of her partner when she’s dealt another blow—the loss of her only remaining family, her beloved grandfather, Butch. Now, she’s forced to return home to the animal sanctuary where she grew up deep in the Florida Everglades, a place she’s avoided for the last twenty years.

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Hoping to avoid the trouble she left behind, her plans for a quick escape are derailed when she realizes that Butch’s death may not have been as innocent as it seemed. When a neighbor turns up murdered, Cassidy vows to get to the bottom of what’s going on—even if doing so makes her the next target.

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Reunited with past friends, enemies, and the first boy she ever loved, the only thing Cassidy knows for sure is that she can’t trust anyone. Because the killer’s taking aim… and they have her in their sights.