The Butcher's Daughter by Wendy Corsi Staub

New York Times bestselling author Wendy Corsi Staub is the master of psychological suspense. In her latest thriller, an investigative genealogist digs for her own biological roots, well aware that some secrets are better left buried.

Investigative genealogist Amelia Crenshaw solves clients’ genetic puzzles, while hers remains shrouded in mystery. Now she suspects that the key to her birth parents’ identities lies in an unexpected connection to a stranger who’s hired her to find his long-lost daughter. Bracing herself for a shocking truth, Amelia is blindsided by a deadly one. 

NYPD Detective Stockton Barnes had walked away from his only child for her own good. He’ll lay down his life to protect her if he and Amelia can find out where—and who—she is. But someone has beat them to it, and she has a lethal score to settle.  

Amelia and Stockton’s entangled roots have unearthed a femme fatale whose family tree holds one of history’s most notorious killers. And the apple never falls far…