The Wolf is the second novel of the Black Dagger Brotherhood: Prison Camp series by JR Ward. In the same series it's preceded by The Jackal; in the main universe, it's preceded by Claimed in Lair of the Wolven series, and The Viper the 3rd book in the Prison Camp series.
Synopsis[]
In the next installment of bestselling author J.R. Ward’s Prison Camp series, things get steamy when Lucan, a wolven forced into bartering drug deals for the infamous Prison Colony, meets Rio, the second in command for the shadowy Caldwell supplier, Mozart. After a deal goes awry, a wolf with piercing golden eyes swoops in to save her from certain death. As shocking truths unfurl, Rio is uncertain of who to trust and what to believe—but with her life on the line, true love rears its head and growls in the face of danger.