“The Maddening Mystery of the Inconceivable Adaptoid”
The Adaptoid escapes from his AIM creators and invades Avengers Mansion to attack Cap.
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Marvel Double Feature #6 (1973) is issue #6 of Marvel's Marvel Double Feature (1973–1977), with a cover date of October 1974. Written by Stan Lee and drawn by Gene Colan and Jack Kirby.
Credits, characters and story details from the Grand Comics Database, CC BY-SA 4.0.