Thor wages war with Ego, the world that's actually alive! Continuing Marvel's efforts to bring you cool (and expensive) back issues at a nice price, this 64-page volume reprints action-packed adventures that provide important info on Ego, the planet-sized villain who plays a major role in MAXIMUM SECURITY! First up is the living biosphere's first appearance in THOR #133 (by Stan Lee and Jack Kirby)! Also included is another Lee and Kirby masterpiece, THOR #160 and #161 - a tale in which the Thunder God actually teams with Ego to fight Galactus!