More like Death and the Executioner

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Lord of LightSeries
series5 books1967
Set in other star systems.
“One of their own, called Sam, breaks with the pantheon to return forbidden knowledge to the ordinary people they rule, touching off a war among the self-styled gods.”
from the catalogue
Start with Dawn →
Jack of ShadowsSeries
series4 books1971
Fantasy, about quests.
Start with Jack of Shadows →
The Book of PtathNovel
A. E. van Vogtstandalone novel1947
Science fiction, about survival, set in our world.
“Ptath, a very powerful god, is throwing by his deadly rival, the goddess Ineznia, on Earth, around 200,000,000 AD, in the form of a mortal, where he has to face numerous dangers to survive.”
from the catalogue
Apprentice AdeptSeries
series7 books1980
Set in parallel universe.
“Phaze is a lush planet of magic, where Proton is a barren mining planet of science.”
from the catalogue
Start with Split Infinity →
Forge of the TitansNovel
Steve Whitestandalone novel2003
Science fiction and military science fiction, about psychic powers and war.
“With other human telepaths, one human traitor, and the advice and counsel of the goddess Secrest battles the Titans and their human allies.”
from the catalogue
The Dark WorldNovel
Henry Kuttnerstandalone novel1965
Fantasy, about transported to another world.
“Roger Zelazny, author of The Chronicles of Amber, credits this book as being one of his primary influences during his youth.”
from the catalogue