The Uncanny X-Men 1981 #278 Direct ed. - back issue - $6.00

The X-Men return to Earth and attempt to invade Muir Isle whose inhabitants have all been taken over by the Shadow King.

• The Muir Island Saga: In the Grip of the Shadow King - Sources for letters credit are The Official Marvel Index to the X-Men (Ward 1994) and Official Index to the Marvel Universe (Vandal et al. 2009).