Colega de Herber, Ross y compañía, ahora colabora esporádicamente con Miskatonic River Press.
| ▲Título▼ | ▲C▼ | ▲Año▽ | ▲V▼ | ▲Concepto▼ |
|---|---|---|---|---|
| Creatures of the Mythos ("Malleus Monstrorum") (junto a Marion Anderson, Scott David Aniolowski, Bruce Ballon et al.) |   | 2006 | — | Escritor |
| Creatures of the Mythos ("The Creature Companion") (junto a Scott David Aniolowski, Shannon Appelcline, Bill Barton et al.) | | 1998 | — | Escritor |
| Creatures of the Mythos ("Ye Booke of Monstres II") (junto a Phil Anderson, Marion Anderson, Bill Barton et al.) | | 1995 | — | Escritor |
| Creatures of the Mythos ("Ye Booke of Monstres") (junto a Scott David Aniolowski, John Carnahan, Larry DiTillio et al.) | | 1994 | — | Escritor |
Sacraments of Evil |  | 1993 | 7.00 | Escritor |
The Dark Wood | | 1993 | — | Escritor |
| Sinister Seeds (junto a Keith Herber, Penelope Love, Mark Morrison et al.) | | 1992 | — | Escritor |
| The Professionals (junto a Blair Reynolds) | | 1992 | — | Escritor |
Objective One: The Esoteric Order of Dagon  | | 1992 | 9.00 | Escritor |
Escape from Innsmouth | | 1992 | 7.00 | Escritor |
| Mansion of Madness | | 1990 | 8.00 | Escritor |
Horror Planet | | 1990 | — | Escritor |
