Credits from where the reprint is taken, from House of Mystery (DC, 1951 series) #229 (February-March 1975). This cover is made by zooming out slightly from the original and removing the banner at the bottom of the original. This reprint preserves the original composition made up of a partial reprint of yet an earlier cover, from DC 100-Page Super Spectacular (DC, 1971 series) #4 (1971). Creature reprint spotted by Frank Battaglia (submitted via the error list, December 2006). Color credit provided by Anthony Tollin.
Inventory story originally intended for Secrets of Sinister House #6 (August-September 1972).
Story in three chapters: Chapter 1: The Uninvited (6 pp.); Chapter 2: Eyes of Satan (8 pp.); Chapter 3: The Minister of Madness (22 pp.).
This is Bill Finger's last story.