Avengers (1963 1st Series) #305

"Avengers Assemble!" Part 1 of 3. Script by John Byrne. Art by Paul Ryan (breakdowns) and Tom Palmer (finishes). Cover by John Byrne. Captain America calls a quick meeting of all the active avengers to make sure everyone understands that there is only one team of Avengers…with different branches on each coast. Meanwhile miles below New York Harbor, Jinku, the witch doctor of the Lava Men, cooks up a surprise for Earth's Mightiest Heroes!