When the Avengers, the X-Men and the Eternals go to war, the ramifications are so great that one book cannot possibly contain them! See all sides of the conflict in this essential Companion volume to the main A.X.E. event! The Eternals know that the mutants have conquered death — but what are they going to do about it? As the oldest immortals on Earth eye up the newest, the doomsday clock starts to tick toward Judgment Day. But will its arrival spell the end for mutantkind? And where exactly does Starfox — former Avenger, Eternal of Titan and brother of Thanos — stand in this epic confrontation?