Turn down Slade Alley and find the small black iron door set into the right-hand wall. Enter the sunlit garden of an old house that doesn't quite make sense. A stranger greets you by name and invites you inside. At first, you won't want to leave. Later, you'll find that you can't. Because every nine years, on the last Saturday of October, a 'guest' is summoned to Slade House. But for what purpose? The answer is waiting in the long attic, at the top of the stairs...