The White House Connection: Someone is killing off the members of a splinter group known as the Sons of Erin, normally not a cause for much concern, but the consequences are much greater than anyone realizes. For in these actions lie the seeds of disaster: the fall of two governments, the derailing of the Irish peace process. Dillon and Johnson must stop this unknown assassin, the heads of state agree-quickly, quietly, before all hell breaks loose. Dark Justice: Someone is recruiting a shadowy network of agents with the intention of creating terror. White House operative Blake Johnson and his opposite number in British intelligence, Sean Dillon, set out to trace the source of the havoc, but behind the first man they find another, and behind him another still. And that man is not pleased by the interference. Soon he will target them all: Johnson, Dillon, Dillon's colleagues. One of them will fall. Without Mercy: As Detective Superintendent Hannah Bernstein of Special Branch lies recuperating in the hospital, a dark shadow sent by a figure from the past steals across the room and finishes the job. Consumed by grief and rage, Dillon, Johnson, Ferguson, and all who loved Hannah swear vengeance, no matter where it takes them.