Xorn is a fictional character published by Marvel Comics. First appearing in New X-Men Annual 2001, Xorn was a new addition to the X-Men membership during writer Grant Morrison's revamp of the franchise.
Originally depicted as a Chinese mutant with a "star for a brain", he is eventually revealed to be the X-Men's nemesis Magneto in disguise at the climax of Morrison's run. After Magneto is apparently killed in the "Planet X" story arc, he appears alive and well a few months later in 2004's Excalibur (Vol. 3) #1, which established that Xorn never was Magneto. Marvel has presented several partial explanations, both in the comics pages and in the press as to the true nature, identity, and motives of Xorn.
Xorn debuts in New X-Men Annual 2001 imprisoned by the Chinese government, where a corrupt mutant official offers to sell him to John Sublime. Xorn is forced to wear a skull-like mask designed to restrain his energy output as he has a "white star" for a brain in his head. The X-Men and Sublime's U-Men find Xorn just as he is attempting to commit suicide by removing his mask, which would destroy the Earth. Cyclops (with the help of Emma Frost) is able to establish contact with Xorn, convincing him not to kill himself, and offers him a position among the X-Men. Xorn is next seen in New X-Men #122, where Cyclops tracks him down to a monastery, where he is told by the monks that Xorn has demonstrated healing powers. The pair are captured by the Shi'ar but arrive at the X-Mansion in time for Xorn to heal the X-Men of a nano-Sentinel infection, restoring Professor Xavier's ability to walk in the process.
The Other Side
There's a light and a darkened road
There's a night and a fading hope
There was a dream that once was mine
But now it seems it has passed with time
Sail away my little sister
Sail away to the other side
Sail away my little sister
Sail away far into the night
Where times seems much better
Than this void called life
There's a voice inside my head
There was a hope, now now long since dead
It's all a wonder, will I abide