Absolute Friends

One of the best novels I've read for a very long time is John le Carré's 'Absolute Friends'. It looks at the question of what happened to spies, on both sides of the iron curtain, after the end of the cold war, and also explores the theme of friendship, and how far do you take it. Real suspense and quite a moving book, with a 'heart in your mouth' ending. Check out the first chapter on:

http://www.johnlecarre.com/absolute_friends_5.html