Mythical episodes, never republished since 1981! When Loki released the terrifying Mangog, Ragnarok time came. Can Thor do anything against the end of the world? The cycle of Asgard's gods is coming to an end! Contains US episodes: - Mighty Thor (1966) 195-205, previously published in MARVEL DELUXE: JOHN BUSCEMA and Thor (Flash Collection) 14-16.