"The Cube Root!" Part 4 of 5. Guest-starring Machine Man and Stingray. Script by Ralph Macchio. Art by John Buscema (breakdowns) and Tom Palmer (finishes). Cover by John Buscema and Tom Palmer. The Avengers and the Super-Adaptoid's heavy metal horde battle from cover-to-cover on Hydro-Base! The Sub-Mariner, Captain Marvel, She-Hulk, Marrina, and Stingray vs. Tess-One, Sentry 459, Machine Man, the awesome android, and the Super-Adaptoid! Wow, will Hydro-Base stay afloat with all this action? The blockbuster battle swings back and forth in each team's favor until Machine Man comes to his senses and switches sides! When Stingray and Machine Man attack the Super-Adaptoid inside the Avengers' communications complex, an Avengers' victory looks just seconds away; but the resourceful Adaptoid summons the mysterious being called Kubik...and absorbs his cosmic powers! And now an Avengers' defeat looks imminent!