I woke up one day to find the number four had vanished. That's right. There was no more two plus two. I thought that was impossible, just like you do. At first I doubted my senses, then I doubted my sanity. I lost my job and my family and spiralled down into drink and pain. Maybe the world around me had gone mad, or maybe it was me? Then I met Ivan. He thrust a dirty piece of paper at me. On it was a character like a capital 'A' with the left leg missing. It could have been the number four. Ivan told me a story that was even more incredible than a world gone mad. He told me that four had been stolen.