The Mask of Loki (1990) is an epic science fantasy novel by American writers Roger Zelazny and Thomas T. Thomas, detailing a centuries long struggle between the avatars of Loki and Ahriman.

The Mask of Loki
Dust-jacket illustration from the first edition
AuthorRoger Zelazny and Thomas T. Thomas
Cover artistGary Ruddell
LanguageEnglish
GenreScience fantasy
PublisherBaen
Publication date
November 1990
Publication placeUnited States
Media typePrint (Hardback)
Pages340 pp
ISBN0-671-72021-X
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