A grisly find in the Pennsylvania woods plunges cops into a cold case, in a novel of "heart-pounding suspense" by the author of The Thief of All Light (Kirkus Reviews).

Before being promoted to detective, Carrie Santero was given a rare glimpse into the mind of a killer. With her mentor, Jacob Rein—a seasoned manhunter whose gift for plumbing the depths of madness nearly drove him over the brink—she was able to help capture one of the most depraved serial killers in the country. Now, the discovery of a small human foot buried in the Pennsylvania woods will lead her to a decades-old cold case—and the darkest secrets of her mentor's youth.

Thirty years ago, a young girl went missing. A police officer was murdered. Another committed suicide. The lives of everyone involved would never be the same. For three agonizing decades, Jacob Rein has yearned for the truth. But when Det. Carrie Santero begins digging up new evidence, she discovers some answers come with shattering consequences.

"Bernard Schaffer is the real thing. He writes about cops with the assurance of a seasoned police veteran." —Lisa Scottoline, New York Times–bestselling author of One Perfect Lie