UNCANNY X-MEN (1963) #3

The story opens with the X-men training in the Danger Room. Today Scott Summers is practicing the speed at which he can blast bean bags that are being launched at him by the Beast. The other boys are involved with some one-upmanship and roughhousing until Professor X calls them to order. Jean’s task is to move a block of wood through a series of obstacles as quickly as possible. Their training is interrupted when Professor X detects the presence of another mutant nearby. He commands the X-men to change into civilian clothes to seek out this new mutant and bring him back to their headquarters.…