Heads will roll in the Trials of X! It's Halloween, and the X-Men have
to face a horror born of a neighboring town in Westchester: the Headless
Horseman?! And that's not the only terror targeting them! On Krakoa,
where the dead walk among the living and the unforgiveable has been
forgiven, the New Mutants must battle an old foe: the psychic entity
known as the Shadow King! Meanwhile, Maverick returns for a team-up with
Wolverine! But when C.I.A. agent Jeff Bannister uncovers a secret
surveillance device aimed at Krakoa, Logan faces a life-or-death
protection mission on the run - with nowhere safe to hide! Collecting
X-MEN (2021) #4, NEW MUTANTS (2019) #22-23 and WOLVERINE (2020)
#17-18.