From a master of the genre, William Peter Blatty , comes Legion , the harrowing sequel to The Exorcist and the inspiration to the movie The Exorcist III. Publisher: Tor Nightfire Author(s): William Peter Blatty Number of pages: 336 Collection: Exorcist Publication date: 2025 Dimensions: 135 x 208 x 24 Cover type: Paperback / softback