Stuart Neville 
Collusion 

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.