| ▲Título▼ | ▲C▼ | ▲Año▽ | ▲V▼ | ▲Concepto▼ |
|---|---|---|---|---|
| Deities of the Mythos ("Malleus Monstrorum") (junto a Phil Anderson, Marion Anderson, Scott David Aniolowski et al.) |   | 2006 | — | Escritor |
| 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 |
| Still Waters (junto a Lynn Willis) |  | 1989 | — | Escritor |
| One in Darkness (junto a Lynn Willis) | | 1989 | — | Escritor |
| The Pits of Bendal Dolum | | 1986 | 7.50 | Escritor |
