Publications (4) 
| Title | Code | Date | Publisher | System (Setting) |
|---|---|---|---|---|
 The Black Seal | 1 | Nov 2001 | Brichester University Press | Call of Cthulhu (Classic) |
| The Black Seal | 2 | Mar 2003 | Brichester University Press | Call of Cthulhu (Classic) |
| The Black Seal | 3 | Nov 2003 | Brichester University Press | Call of Cthulhu (Classic) |
| The Black Seal | 4 | Aut 2023 | Sixtystone Press | Call of Cthulhu (Classic), Call of Cthulhu (Now) |