For Sophie and Harriet
I would like to thank those who have supported and encouraged me in writing this book.
They include one or two of my former colleagues in MI5, whom I will not name to avoid embarrassing them, my husband John, who helped especially with the India episodes; and my two daughters Sophie and Harriet who have unfailingly supported me in this as in everything else I have done.
Thanks go also to the team at Random House: Gail Rebuck and Simon Master and their colleagues and Sue Freestone and Tony Whittome of Hutchinson, in particular for the way they have handled the sensitive issues connected with publication.
Finally, I want to thank my successor as Director-General of MI5, Sir Stephen Lander.
He and I have been friends and colleagues for years and as I would expect he has kept cool throughout the hysteria which has sometimes surrounded the preparation of this book. He has said that he would rather I had not written it, but in that I did, he has done his best, in difficult circumstances, to ensure that our relationship remains friendly.