After a fight against the Absorbing Man and Loki, Thor must solve a mystery in Stonehenge and repel the attacks of Ulik, the king of trolls, who wants to conquer the Earth and steal Mjolnir. And this is only the beginning, because Thor, the Three Warriors and Odin will leave for a cosmic adventure. Contains the US episodes: - Mighty Thor (1966) #206-216 Titles previously published in Thor 17, 20-24.