From the USA Today Bestselling author of The Magician's Lie

"A Spunky Spy Saga." ? NPR Books

"Macallister is becoming a leading voice in strong, female-driven historical fiction. Exciting, frightening, and unspeakably moving..."?Erika Robuck, bestselling author of Hemingways's Girl

For the first female Pinkerton detective, respect is hard to come by. Danger, however, is not.

In the tumultuous years of the Civil War, the streets of Chicago offer a woman mostly danger and ruin?unless that woman is Kate Warne, the first female Pinkerton detective and a desperate widow with a knack for manipulation.

Descending into undercover operations, Kate is able to infiltrate the seedy side of the city in ways her fellow detectives can't. She's a seductress, an exotic foreign medium, a rich train passenger?all depending on the day and the robber, thief, or murderer she's been assigned to nab.

But is the woman she's becoming?capable of lies, swapping identities like dresses?the true Kate? Or has the real disguise been the good girl she always thought she was? As the tensions between the north and south escalate, Kate takes on a job in which the stakes have never been higher. The nation's future is at risk, even as the lines between disguise and reality begin to blur.

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