The Twelve
1999An ancient prophecy names twelve mutants whose combined power Apocalypse needs to achieve ultimate ascension. Apocalypse captures the Twelve — including Cyclops, Xavier, Magneto, and others — and uses their energy to merge himself with the body of Nate Grey. Cyclops sacrifices himself to stop the process, becoming merged with Apocalypse instead. A sprawling late-90s epic that fundamentally changes Cyclops's trajectory.
4 core issues, 4 optional tie-ins/crossovers
The Twelve prophecy is revealed; Apocalypse begins gathering the chosen mutants
Apocalypse captures the Twelve and begins the ritual
The X-Men mount a rescue; the ritual reaches its climax
Cyclops merges with Apocalypse to save Nate Grey; the team believes Cyclops is dead
Tie-InWolverine's role in the battle against Apocalypse's forces
Tie-In
Tie-InCable confronts the legacy of Apocalypse; milestone issue
Tie-InCable deals with the aftermath of Cyclops's sacrifice