Chaosium · Margaret Weis Productions
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Before the Fall: Innsmouth Adventures Prior to the Great Raid of 1928 | 978-1-56882-135-1 (1-56882-135-2) | 1998 | Michael Lay · Gary O'Connell · Gary Sumpter · Lucya Szachnowski |
| Supernatural Adventures | 978-1-931567-63-3 (1-931567-63-8) | 2010 | Graeme Davis · Jess Hartley · George Holochwost · C.A. Suleiman |