Return to the dark and sexy Black Dagger Brotherhood world in this second prison camp installment from #1 New York Times bestselling author J. R. Ward . . .

Rio Hernandez-Guerrero has been working undercover to bring down Caldwell's worst drug lord, the elusive and sadistic Mozart. She knows she's finally getting close to him when she's ordered to negotiate a massive deal with a shadowy supplier. But what shows up at the meeting . . . is nothing she expects.

Betrayed by his clan, Lucan was locked up decades ago for the crime of being both wolven and vampire. Forced to engage in drug-dealing by the prison camp's despot, he is not looking for anything more complicated in his cold and isolated life. But then a human woman, with a stare that tames him, crosses his path . . .

Rio captures a predator's heart, but they both have secrets that threaten not only their fate as soulmates but their very lives. Will they find a way to win at the deadly game they're both playing . . . or will their inner natures shatter their love?