- The Avengers face their darkest hour as the Adamantium menace, Ultron, ravages Earth and imposes his ruthless robotic rule. Only a few of Earth"s Mightiest Heroes are left standing as they mount a desperate bid to save the day. And it"s up to you to put the hue into humanity"s last hope! 72 pages of the most exciting moments from Age of Ultron - featuring the incredible line art of Bryan Hitch, Brandon Peterson, Carlos Pacheco and more - are assembled here, just waiting for you to decorate with pens, pencils and crayons.