Long Way Back - David Bowra

Pigeon put his hand in his pocket and took out the gun. He ran his finger along the barrel, pointed the gun at Davis and smiled. "This is how we deal with rats." 

Alan Davis was a gangster in a previous life. Now under witness protection, he's recruited by the RCMP to help tackle drug trafficking at the Port of Montreal.

Driven by his desire to show his estranged daughter that there is some good in him after all, he goes undercover and penetrates the gang that controls the port. But not everybody is convinced by his act, and Davis must act quickly to keep his cover and complete his mission.

As his plan unfolds, Davis realizes that he's not only putting himself in danger-he's risking those he cares about too. Forced to choose between good and evil, he discovers that there's not much difference between the people who hired him and the real villains. Is he prepared to risk everything for the mission?

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 Alan Davis is back! If readers liked Banking on Murder, they'll be swept away by his latest novel.