"Enter: The Mad Thinker!" Plot by Len Wein, Archie Goodwin, and Jim Shooter. Script by Bill Mantlo. Art by Sal Buscema (breakdowns) and Joe Sinnott (finishes). Cover by Ron Wilson and Joe Sinnott. The Reed Richards of Counter-Earth tricks Ben and Johnny into entering the Negative Zone to look for the 'other' Reed! The Thing and the Human Torch find Reed...and Annihilus...and the Mad Thinker's giant android monster! How many bad guys are in this story? Meanwhile at Whisper Hill, Sue and Alicia witness a mysterious group of men abducting Agatha Harkness and Franklin! A hysterical Invisible Girl rushes back to the Baxter Building...to battle the Brute! Does Sue have a chance of defeating the powerful Brute? The odds do not look good. Cameo appearances by Tigra, Thundra, and the Impossible Man.