From publisher blurb: AN UNSTOPPABLE FORCE A wave of invaders from the Negative Zone spreads from galaxy to galaxy, bringing chaos and ruin to everything in its path. Starfaring empires and intergalactic peacekeeping forces are torn asunder. When Annihilus and his conquering hordes threaten even mighty Galactus, can your cosmic heroes hope to stop the Annihilation Wave? COSMIC-SCALED ADVENTURE MARVEL HEROIC ROLEPLAYING Event Books capture the drama and action of pivotal Marvel Universe blockbuster events, with hero and villain datafiles, detailed sourcebook entries, and story material. Rewrite history, make your own choices, and change your hero’s fate. With MARVEL HEROIC ROLEPLAYING Event Books, the worlds of What If? are yours to explore. This Premium Edition Event Book includes: Operations Manual: Easy to learn game rules for playing characters from the Marvel Universe and playing out your favorite Marvel Blockbuster Events! Annihilation: Based on the sweeping cosmic saga of the blockbuster Annihilation storyline! Cosmic-level heroes and villains rising up against the invasion. Includes rules to scale up the game to cosmic level as well as key game Milestones and interstellar locations you expect from such a star-shattering event. Hero Datafiles: Game play sheets for many of your favorite cosmic Marvel Super Heroes, from fan-favorites like Nova and Quasar to the awe-inspiring Heralds of Galactus!