The Exorcist is a novel of supernatural suspense by William Peter Blatty, published by Harper & Row in 1971. It was inspired by a 1949 case of demonic possession and exorcism that Blatty heard about while he was a student in the class of 1950 at Georgetown University, a Jesuit school. On October 31, 2010, Cemetery Dance published a special omnibus edition of The Exorcist and its sequel Legion, signed by Blatty (ISBN 978-1587672118). A limited edition of 750 copies (with an additional 52 leatherbound copies), it is now out of print. On September 27, 2011, The Exorcist was re-released as a 40th Anniversary Edition in paperback, hardcover and audiobook editions with differing cover artwork. This new, updated edition is set to feature new and revised material: "The 40th Anniversary Edition of The Exorcist will have a touch of new material in it as part of an all-around polish of the dialogue and prose. First time around I never had the time (meaning the funds) to do a second draft, and this, finally, is it. With forty years to think about it, a few little changes were inevitable -- plus one new character in a totally new very spooky scene. This is the version I would like to be remembered for."
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