"The Mark of the Monster!"
Professor X assembles the team to investigate the report that a scientist has found Frankenstein's monster embedded in the artic ice. The scientist impatiently thaws the monster, who starts on a rampage that only the X-Men can halt. Professor X confirms his suspicion that the monster was an android sent by an alien race to be ambassador to our humankind, but things went awry. This is not the same character as that from Marvel's Frankenstein title.
"The Origins of the Uncanny X-Men: The First Evil Mutant!"
Scott Summers flees the angry world who knows he is a mutant, and is drawn to a shack in the woods occupied by Jack Winters, a mutant himself, who helps hide Scott from the police. Elsewhere, Professor Charles Xavier, using a mutant detection device called Cyberno (a predecessor of Cerebro) locates Scott. Winters is a teleporter with diamond-hard hands, dubbed the Jack O'Diamonds, and wants Scott to join him in a career of crime. Professor X confronts them both.