"Spider, Spider, on the Moon!"
Warlock rescues Spider-Man's out-of-control rocket, landing it on the moon's Blue Area. The Stranger is there to steal Warlock's Soul Gem, but his gem isn't the only one there. First mention of the 6 Soul Gems, later featured in the Infinity Gauntlet.
Contains a fan letter from Fred Hembeck.
First appearance of the Infinity Stones
First appearance of the Gardener