X-Men '92 2015 #1 - back issue - $5.25

While the X-Men enjoy an afternoon outing, they are attacked by Sentinels. Later, Baron Kelly reveals the existence of the Clear Mountain Institute, an initiative to reform former "evil" mutants. The X-Men decide to investigate and they meet the director of Clear Mountain, Cassandra Nova.

Cassandra Nova demonstrates the virtues of the Clear Mountain Institute and her work in helping mutants acclimate themselves to normal lives. Meanwhile, Professor X reaches out on the astral plane to investigate and is attacked by Nova, who reveals that she is possessed by the Shadow King. Back at the Institute, Nova lures the X-Men into a trap.