Writer: Stan Lee
Artist: Jack Kirby
Professor X calls the X-Men when his Radar-Image Beam picks up the energy signature of a very powerful being. However, before they can get a better analysis the being suddenly disappears in a flashing explosion. Suspecting this being as a super-powerful Mutant, the Professor and Scott concern themselves with the potential of such a powerful being. Iceman and Beast however don't take this finding very seriously and begin horsing around again, prompting Marvel Girl to use her powers to break up their rough housing, which leads to the Professor scolding Bobby for inciting the situation.