Avengers (1963) #329-331 l 237

Larry Hama's run on the title continues, as Ngh the Unspeakable comes to Earth and tries to corrupt humans and destroy the Avengers!  Meanwhile, the Tetrarchs of Entropy come to Earth and fight the Avengers because they're giant cosmic jerks!  Don't know who any of these characters are?  Find out in this episode!  (Also, find out who's on the new team and what the new charter looks like!)