Companion comic to The Dark Mansion of Forbidden Love . The series numbering continues with Secrets of Sinister House #5.
Collected Editions:
Showcase Presents: Secrets of Sinister House Vol. 1 (collects #1-4 plus Secrets of Sinister House #5-18)
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/the-sinister-house-of-secret-love/4050-2506/).
