An undercover FBI agent has been exposed--while a traitor hides within the Bureau in this heart-pounding crime thriller by "a knock-em-dead writer" (Anthony Neil Smith, author of Slow Bear). Tony Wolf, a troubled man and the FBI's most esteemed undercover agent, is back after mysteriously vanishing without a trace. A specialist at infiltrating criminal organizations and taking them down from the inside, he lives his life in the shadows. But...