A novel of compelling suspense. Professor James Lowry didn' believe in spirits, or witches, or demons. Not until a gentle spring evening when his hat disappeared, and suddenly he couldn't remember the last four hours of his life. Now, the quiet university town of Atworthy is changing - slightly at first, then faster and more frighteningly each time he tries to remember. Lowry is pursued by a dark, secret evil that is turning his whole world against him while it whispers a warning from the shadows: If you find your hat you'll find your four hours. If you find your four hours then you will die...