MICHAEL NORTH: THE PERFECT MI5 ASSET. Ruthless, brave, loyal and, best of all, disposable. The bullet lodged in his brain means he could die at any second.
Now, undercover in a doomsday cult on a remote Scottish island, he has thirty-six hours to stop the mass murder of thousands of people.
But in the world of the indoctrinated, Michael soon realises that everyone is a potential enemy. He's used to his own life hanging by a thread - never before has it come so close to snapping.