Uncanny X-Men (1963 1st Series) UK Edition comic books with issue numbers 125-128

UK edition. Identical to US edition, but has 12p cover price. As the cover says: the dramatic return of Phoenix! "There's Something Awful on Muir Island!" "...!" Story by Chris Claremont and John Byrne. Art by John Byrne and Terry Austin. First appearance of Mutant X (Proteus).

UK edition. Identical to US edition, but has 12p cover price. "How Sharper than a Serpent's Tooth...!" Part 1 of 3. Story by Chris Claremont and John Byrne. Art by John Byrne and Terry Austin. Cover by Dave Cockrum and Terry Austin. The X-Men return to Muir Island to investigate the attack on Polaris and Havok. When they get there they find themselves in a deadly battle against arguably the most powerful and deadliest mutant alive - Mutant X! 1st appearance of Proteus.

UK edition. Identical to US edition, but has 12p cover price. "The Quality of Hatred!" Part 2 of 3. Story by Chris Claremont and John Byrne. Art and cover by John Byrne and Terry Austin. Wolverine's encounter with Proteus has left the feral mutant uncharacteristically shaken. Cyclops is forced to take drastic measures to rally his troops for the final showdown with Mutant X.

UK edition. Identical to US edition, but has 12p cover price. "The Action of the Tiger!" Part 3 of 3. Story by Chris Claremont and John Byrne. Art by John Byrne and Terry Austin. Cover by George Perez and Terry Austin. In order to defeat the reality warping mutant Proteus, one X-Men will have to commit the ultimate sin - murder! Don't miss the shocking conclusion to the saga of Mutant X!