In a letter to be read only after his death, Gerald Rayner discloses to Dan some intimate truths, uninhibited in the knowledge he will never see Dan again. He writes freely of his feelings and attempts to explain them and his strange behaviour by enclosing a story written only for Dan, in which he reveals some deep secrets about himself, and about others. Supersecrets. So secret that they have never before been committed to paper but exist only in the minds of a handful of men, and one woman. Secrets so terrifying that the burden of knowledge is almost unbearable. Gerald takes Dan back in time to the last years of the Cold War, of spies and espionage, life, death and danger, a time before Dan was even born. But the tale moves forward through the years to the tragedy of 9/11, then on to their last and final meeting in April, 2015. Gerald explains gently why he had to end their relationship so abruptly and harshly, and begs forgiveness for a terrible and tragic wrong. And he makes a promise... Dan receives the letter and story in a sealed package two years later, with a covering letter from Gerald's step-daughter which breaks the news of his death. A few days later, Dan receives an email from her with 'the final chapter' of Gerald's story in the form of a diary which she finds on his computer. It would seem Gerald had spent the last two years of his life trying to make amends, but failed to see the terrifying consequences of becoming embroiled in the UK's Secret Intelligence Service, MI6, as it struggles to meet the demands of a changing and uncertain world.