CONAN does not condone human sacrifice,

CONAN expresses dismay at the readiness of the people of Xuthal to sacrifice themselves to Thog, the ancient creature that is their god.

-by CROM, I'd like to see a priest try to take a Cimmerian to the alter. There'd be blood spilt, but not as the priest intended.

From, "The Slithering Shadow"
Page 136 "The Complete Chronicles of CONAN"

CONAN has a fight with a god

After fleeing the mysterious city of Xuthal where he killed nearly everyone he met and had a fight with the ancient thog, the god (yes! god!) of the people there. Thog was as gods go a fairly Lovecraftian tentacled one at that, CONAN remarks,

CONAN.

There are brains and gut and blood to be cleaned off marble tiles, and if their god still lives, he carries more wounds than I.

From "The Slithering Shadow"
Page 162. The Complete Chronicles of CONAN