Lynn Willis

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Cover of Masks of Nyarlathotep

Masks of Nyarlathotep

2018

with Chaosium Inc

Cover of S. Petersen's Field Guide to Lovecraftian Horrors: A Field Observer's Handbook of Preternatural Entities and Beings from Beyond the Wall of Sleep

S. Petersen's Field Guide to Lovecraftian Horrors: A Field Observer's Handbook of Preternatural Entities and Beings from Beyond the Wall of Sleep

2016

with Sandy Petersen

Cover of 7th Edition Quick-Start Rules

7th Edition Quick-Start Rules

2013

with Sandy Petersen

Cover of S. Petersen's Field Guide to Creatures of the Dreamlands: An Album of Entities from the Land Beyond the Wall of Sleep

S. Petersen's Field Guide to Creatures of the Dreamlands: An Album of Entities from the Land Beyond the Wall of Sleep

1989

with Sandy Petersen

Cover of Into the Troll Realms: Troll Adventures and Encounters for RuneQuest

Into the Troll Realms: Troll Adventures and Encounters for RuneQuest

1988

with Greg Stafford and Sandy Petersen

Cover of The Complete Masks of Nyarlathotep

The Complete Masks of Nyarlathotep

1984

with Larry DiTillio

Cover of Call of Cthulhu: Horror Roleplaying in the Worlds of H.P. Lovecraft

Call of Cthulhu: Horror Roleplaying in the Worlds of H.P. Lovecraft

1981

with Sandy Petersen