Avengers (1963 1st Series) #297

"Futures Imperfect!" Part 4 of 4. Script by Walt Simonson. Art by John Buscema (layouts) and Tom Palmer (finishes). Cover by John Buscema and Tom Palmer.

It's the cataclysmic conclusion to the Avengers' space-time encounter with Ravonna! Earth's Mightiest Heroes and Kang Nebula (aka Ravonna) streak towards the time bubble in their specially modified quinjet! But unbeknownst to the evil leader of this mission…three stowaway Kangs are onboard too!