New Sean Dillon thriller from the Sunday Times bestselling author. In Helmand Province, Afghanistan, US Army Rangers and their lone convoy are hit by a massive roadside bomb. As half the patrol lie dead or injured, the rest are ambushed. The attack is brutal, but worsened by the English and Irish voices picked out amongst the battlefield chatter: one voice in particular, calling himself 'Shamrock'. British Intelligence Officer, Sean Dillon is charged with hunting down the traitor, in a fast and furious mission, which sweeps the reader from Pakistan to Algeria, London, Paris, and Ireland, ...