Los Vengadores #36

In "Los Ultroides atacan," the Avengers face a mysterious threat when the Captain is ambushed by the Scarlet Witch, who reveals Pietro is trapped aboard an alien ship in Transia. With the team divided over whether to accept the Black Widow, they journey to the planet, only to be blocked by a powerful force field—until Wanda suggests a hidden cave she once knew. Inside, they discover a seemingly mindless mayor, and a voice from the shadows begins to speak. Written by Roy Thomas and illustrated by Don Heck, this 1981 issue features cover art by Don Heck, capturing the tension of a mission that’s just beginning.