Thor vs. Seth, The Serpent God (Thor #395-400)

Seth, the Egyptian God of Death, has set his sights on Asgard, and he won't stop until he's exterminated the entire race! It's an all-out war between the gods, with Seth pulling out all the stops and winning! But is it possible? Is Odin still alive? Guest-starring Earth-Force and the Black Knight! And what hope does Thor have against Surtur the Fire-Demon, the one villain Odin has never been able to permanently defeat?

Collecting THOR (1966) #395-400.