232-page hardcover graphic novel written and illustrated by John Byrne that continues the legendary Chris Claremont/John Byrne run on Uncanny X-Men, which ended prematurely due to creative conflicts between Byrne and then-Editor-in-Chief Jim Shooter
Reimagines an alternate timeline branching from the events of Uncanny X-Men #108-143, an era widely regarded as the greatest run in the title's history
The original Claremont/Byrne collaboration produced landmark stories including Days of Future Past and The Dark Phoenix Saga, while introducing iconic characters such as Alpha Flight, Emma Frost, Dazzler, and Kitty Pryde