X-Men: First Class Vol. 4 - The Wonder Years
Jeff Parker, Roger Langridge, Roy Thomas (Writers); Nick Dragotta, Colleen Coover, Roger Cruz, Karl Kesel, Jeff Parker, Dean Haspiel, Nick Kilislian, Roger Langridge, Michael Cho, Do Heck (Artists)
For millions of years, mankind's place on Earth was unchallenged - until five young people paved the way for a new kind of human! While students at the Xavier School for Gifted Youngsters, Cyclops, Marvel Girl, Angel, Beast, and Iceman taught the world what it meant to be X-Men. These are the hidden stories of the team that laid the foundation of a mutant dynasty! In this volume, the enigmatic Mysterio; an encounter with Machine Man; a battle with murderously unstable androids; the mysterious Medusa; and Ice Man and the Human Torch team-up!
X-Men: First Class (2nd series) #11-16; Giant-Size X-Men: Frist Class #1