First appearance of the Changeling
Since being freed from their control, the mutant Banshee has been searching for the secret base of the Factor Three conspiracy. Searching the mountains of a small European town, Banshee uses his sonic powers to discover that one of the mountains is really hollow and correctly deduces that this is the secret hideout of Factor Three. However, the mountain is not unguarded, as a panel opens to reveal a spider-shaped robot that is armed with a paralysis ray. Although it strikes Banshee, he manages to make an escape before it had a full effect on him. Returning to his base of operations, he sends out a radio call to his friends the X-Men to tell them what he has learned. Banshee passes out before he can complete his communication, which only tells the X-Men to "beware of the spider". When agents of Factor Three arrive on the location, they find out that Banshee had attempted to contact the X-Men and report back to their commander. The commander of Factor Three then orders them to send out the spider-robot in one of their saucer crafts...