Keith Herber

Spawn of Azathoth

2024

Prince of the City

1995

Keeper's Compendium

1993

Trail of Tsathogghua (Call of Cthulhu)

1984

The Keeper's Companion: Blasphemous Knowledge, Forbidden Secrets

2000

The Fungi from Yuggoth

1984

The Compact Trail of Tsathoggua (Call of Cthulhu Role Playing Game Series)

1997

The Compact Arkham Unveiled

1995

The 1920s Investigators Companion Call of Cthulhu Roleplaying

2007

The 1920s Investigator's Companion

1997

Rogue Mistress

1991

Return to Dunwich

1991

New Tales of the Miskatonic Valley

2009

Le prince noir

1998

Investigator's Companion for the 1920s

1993

Immortal Eyes

1995

H.P. Lovecraft's Dunwich

2002

H.P. Lovecraft's Arkham

2003