Avalon (Marvel Comics)

Avalon, also known as Otherworld, is a fictionaldimension appearing in American comic books published by Marvel Comics. It is based on the mythical Avalon from Celtic and, more specifically, Irish and Welsh mythology.

Avalon first appeared in Fantastic Four #54 (September 1966) by Stan Lee and Jack Kirby. Avalon's dimension was referred to as 'Otherworld' for the first time in Captain Britain #1 (October 1976) by Chris Claremont, Herb Trimpe, and Fred Kida.