(Cover Date: April, 1970)

Summary: Quicksilver seeks the Avengers' help in rescuing his sister, the Scarlet Witch, from Arkon, who has kidnapped her to be his mate. Quicksilver tells them that Arkon compelled her to read a spell that transported him to their world. When the team questions his story, Arkon appears again to abduct a group of nuclear scientists. He plans to use them to blow up the Earth in a nuclear holocaust in order to provide permanent light for his world.

Comments: Yellowjacket & Wasp leave the team as active members & head for Alaska, where Hank will conduct research for the government.