The past isn't set in stone. Kamala Khan is locked in a battle through time against an unstable and unleashed Legion — and she's gone from the frying pan into the Phoenix fire. As the history we know is destroyed in front of her eyes, the new mutant must team up with Jean Grey in her darkest hour... and master her dangerous new mutant power! X-Hivemind Lanzing and Kelly team with superstar Rod Reis for a cosmic, emotional story that turns history upside down.