Articles (3)
| Title | Pages | Publication | Code | Date | Publisher | System (Setting) | |
|---|---|---|---|---|---|---|---|
 The Hermetic Order of the Silver Twilight | 4-13 |  Shadows of Yog-Sothoth | CHA2010 | 1982 | Chaosium | Call of Cthulhu (Classic) | Boston; 1924 |
| The Hermetic Order of the Silver Twilight | 4-13 | Cthulhu Classics | CHA3301 | 1989 | Chaosium | Call of Cthulhu (Classic) | Boston; 1924 |
| The Hermetic Order of the Silver Twilight | 7-27 | Shadows of Yog-Sothoth | CHA2397 | 2004 | Chaosium | Call of Cthulhu (Classic) | Boston; 1924 |