Frederick Dukes

The original X-Men came to the carnival in their everyday identities to invite him to meet with their mentor, Professor Charles Xavier. Attracted to the beautiful young X-Man Jean Grey, the Blob accepted and went with the X-Men to Xavier's Mansion. There, Xavier asked the Blob to join the X-Men, but the Blob arrogantly refused. Xavier then knew he had to use his mental powers to erase the Blob's knowledge of the X-Men's true identities. But the Blob had no intention of letting this happen, and, after fighting the X-Men, escaped back to the carnival.

The Blob had learned through meeting Xavier that he himself was a superhumanly powerful mutant. Believing himself to be superior to normal people, the Blob took over the carnival. Knowing that the X-Men considered him dangerous because he knew who they really were, the Blob decided to strike out at them first. He led the other members of the carnival on an attack on Xavier's mansion. The Blob hoped to steal whatever scientific discoveries and special weapons the X-Men might possess and use them against ordinary humans. However, the X-Men defeated the Blob and his allies, and Xavier wiped out their memories of the X-Men.