One stiflingly hot August morning, in the very early hours, whilst everybody was safely asleep, an old man moved slowly through the undergrowth of a forest near the small town of Saffron Walden. He stopped, glanced at the brightest star in the sky and smiled with satisfaction. It would be a good day for magic. The old man knew this because he was a wizard. He was not the type of kindly, enchanted figure that you may have read about in books, but a sorcerer of the dark arts.