The Vision and the Scarlet Witch #1

In "Trick Or Treat!", Vision and the Scarlet Witch settle into their new home in Leonia on Halloween, only to be drawn into a supernatural threat when Jarvis delivers a mysterious Druid Tome found by Captain America. As Samhain awakens from the book, mutating trick-or-treaters into monstrous forms, the duo must face the ancient entity who claims to be the very spirit of Hallowe’en itself. Written by Bill Mantlo and illustrated by Rick Leonardi, with cover art by Rick Leonardi and Jack Abel, this 1982 Marvel classic blends spooky suspense with emotional stakes, all wrapped in a hauntingly vivid package.