The Avengers 1963 #289 Direct ed. - back issue - $4.00
Heavy Metal attacks Hydrobase and the Avengers. Machine Man reveals that he has been waiting for the Super-Adaptoid to reveal its true intentions and helps the Avengers against the Adaptoid. The Adaptoid uses the Avengers' computer to find the Cosmic Cube and brings it to Hydrobase. The Cube arrives in a sentient humanoid form calling itself Kubik. The Super-Adaptoid duplicates Kubik's powers.
- - Letters from Michael Proteau, D.L. Lambert Jr., David Young
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