Roper, with his usual technical wizardry, has recorded the sounds of an ambush in Afghanistan, during which several US Army Rangers and a British helicopter medical team are killed. But what disturbs everyone who hears the tape is that a number of the voices on the Taliban side are British, and one in particular, the commander, has an Irish accent and the codename Shamrock.
Ferguson, Dillon & Co. set out to find this traitor, but the fellow is more than a match for them, and he's not the only Judas they have to worry about.
The fast and furious plot sweeps the reader from Pakistan to Algeria to London to Paris to Ireland, with many deaths along the way. And one familiar, and deadly face from THE WOLF AT THE DOOR makes a dramatic, and decisive reappearance, in a nerve-jangling story, where the stakes are high, and no one can be trusted.