1st Appearance "BUN-DALL"
* This is the first story to reveal there are "Six Infinity Gems" in total. Later it is confirmed Mar-Vell and Rick Jones were in the Mind Gem in this issue.

The Head of the Denebian underground convinces Mar-Vell that the solution to all their problems is for Rick Jones and Mar-Vell to enter the Soul Gem in his possession, a Gem that the Supreme Intelligence secretly manipulated the cyborgs into acquiring just as he sent the Null-Trons to invade, setting up the conflict to further his byzantine plan. Once inside the Gem, the two minds' struggle to keep from merging manifests as a direct battle between their mental avatars and the Gem in turn transmits the psychic echoes of their personal war onto the physical battlefield between the Null-Trons and the Denebian cyborgs.

Rambu, the least mechanized of the cyborgs, remains underground with the Head by the Gem and questions the plan to use the aliens' conflict to fuel their own. The Head reveals that his perspective has merged with that of his Null-Tron body, making him coldly neutral in his intent. His true goal is to bring peace to the planet through a forced bloody conclusion resulting in the complete annihilation of one side or the other, and it doesn't matter which. Enraged, Rambu begins battering on the Gem in an attempt to destroy it, disrupting Rick and Mar-Vell's battle and the real-world war in turn. Fawn then appears to Rambu offering a different solution. She has him take her into the Gem as well, where they find the warring minds and talk sense into them, making them realize that their struggle for dominance would only bring about the merged fate they wished to avoid, and potentially a mutual death. In her concern, Fawn also reveals that if Rick dies, so does she. Mar-Vell is able to see Fawn for the first time as she talks them down and leads them all out of the Gem.

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