Thomas Perry: The Informant (USA 2012)

From the Publisher:
The Butcher's Boy is back. Thomas Perry's vengeful assassin has returned to play a deadly psychological game with Elizabeth Waring, the only Justice Department official who ever believed he existed. The Butcher's Boy knows Waring can help him hunt down the Mafia boss who sent a team of hit men to kill him -- and in return he offers her key information that will help her crack an unsolved murder. So begins a new assault on organized crime and an uneasy alliance between opposite sides of the law. As the Butcher's Boy works his way ever closer to his deadly enemy in an effort to kill him first, Waring is in a desperate struggle, either to force her unlikely ally to become a protected informant, or to take him out of commission for good.

Thomas Perry: The Informant. A Butcher's Boy Novel. Mariner Books, ISBN: 9780547737430 (May, 2012), 325 p., $14.95.

Thomas Perry: The Informant (USA 2011)

From the Publisher:
In Thomas Perry's Edgar-winning debut The Butcher's Boy, a professional killer betrayed by the Mafia leaves countless mobsters dead and then disappears. Justice Department official Elizabeth Waring is the only one who believes he ever existed. Many years later, the Butcher's Boy finds his peaceful life threatened when a Mafia hit team finally catches up with him. He knows they won't stop coming and decides to take the fight to their door.

Soon Waring, now high up in the Organized Crime Division of the Justice Department, receives a surprise latenight visit from the Butcher's Boy. Knowing she keeps track of the Mafia, he asks her whom his attackers worked for, offering information that will help her crack an unsolved murder in return. So begins a new assault on organized crime and an uneasy alliance between opposite sides of the law. As the Butcher's Boy works his way ever closer to his quarry in an effort to protect his new way of life, Waring is in a race against time, either to convince him to become a protected informant -- or to take him out of commission for good.

Thomas Perry: The Informant. A Butcher's Boy Novel. Harcourt, ISBN: 9780547569338 (May, 2011), 325 p., $27.00.