GARRY FEGAN: the former hit man is hiding out in New York, having cut all ties wiht his old life. But he made a fatal mistake: he spared the life of Bull O'Kane, a ruthless gang leader who will stop at nothing to get his revenge.THE TRAVELLER:a merciless assassin who kills without pity or remorse, The Traveller is hired by O'Kane. His instructions are to find - and terminate - Fegan, and O'Kane knows the perfect bait to lure Fegan back to Belfast.JACK LENNON:his family have disowned him and his colleagues don't trust him. But when he discovers that his ex-partner and young daughter are helpless pawns caught up in O'Kane's thirst for vengeance, Lennon must enter into a desperate alliance if he is to save them both.

Former hit man, Gerry Fegan, is in New York, hiding from a past he escaped at a terrible cost. But he has made a fatal mistake; he spared the life of Bull O'Kane, a ruthless man who will stop at nothing to get his revenge on those who were present at a devastating attack at his farm house. Determined to see Fegan and the other witnesses dead, O'Kane calls in the Traveller, an assassin without pity or remorse, a killer of the purest kind.Back in Belfast, Detective Inspector Jack Lennon, father of one of the witnesses, is caught up in a web of official secrets and lies as he tries to uncover the whereabouts of his daughter. But the closer he gets to the truth about what happened at O'Kane's farm, the more his superiors warn him off and Lennon soon realises that his only hope may lie in an alliance with Fegan, the man his force tried to put away.A fast-paced thriller about duty and revenge, Collusion is the blistering sequel to The Twelve, one of the most highly acclaimed debuts of recent years.