"Magma Force!" Guest-starring Spider-Man and Iron Man.
Plot by Herb Trimpe. Script by David Michelinie. Art by Herb Trimpe (breakdowns) and Mike Esposito (finishes). Cover by Bob Layton.
Powerful tremors have been rocking New York City for the past few days! And the next one hits while Peter Parker is attending Tony Stark's press conference on the very subject of the underground rumblings! Shell-head and Spider-Man drill down to the Earth's crust to find the source of the tremors...and they may live to regret it! A new super-villain is operating down below and harnessing the power of the Earth's molten rock! Can the golden avenger and the web-slinger prevent Magma from destroying the Big Apple?
* First appearance of Magma.