Issue: #25
ORIGINAL SIN tie-in!Xavier's greatest secret has been revealed!Against such overwhelming power, will the X-Men succeed in holding the line?Or will Xavier's final 'gift' to his children be their undoing.
Creators: Alan Fine, Axel Alonso, Dan Buckley, Joe Quesada, Mike Marts, Joe Caramagna, Chris Bachalo, Brian Michael Bendis, Victor Olazaba, Jaime Mendoza, Tim Townsend, Mark Irwin, Xander Jarowey, Al Vey
Characters: Captain America, Iron Man, Thor, Magneto, Storm, Wolverine, Kitty Pryde, Beast, Cyclops, Emma Frost, Iceman, Nightcrawler, Professor X, Rachel Grey, Dazzler, She-Hulk, Thing, Doop, Matthew Malloy, Firestar
Story arcs: Original Sin