According to legend, the most famous exorcism in American history occurred in St. Louis in 1949, creating a mystery that continues to endure to this day. But what really happened in this enigmatic case? How much of the mysterious story that has been told over the years is truth and how much fiction? Author Troy Taylor, who has examined many cases of ghosts and the unexplained over the years, has spent more than 10 years researching the facts behind this chilling story --- searching through old records, visiting the sites associated with the exorcism and even interviewing the last remaining witnesses to the strange events. This book now reveals the results of his work, unveiling the true facts behind what occurred in St. Louis in 1949 and allowing the reader to judge for himself whether the victim in the case, "Robbie Doe", was really possessed by demons or not. This eye-opening and horrifying book is not for the faint of heart and is liable to have you sleeping with the lights on long after you have closed it pages for the final time!