PORTLAND, OR (July 17, 2025) In advance of Comic-Con International 2025 in San Diego, CA, groundbreaking comic book publisher Oni Press and award-winning production company Valhalla Entertainment today announced that Valhalla has preemptively acquired Oni’s upcoming series YULETIDE – created by writer George Northy (EC’s Shiver SuspenStories) and artist Rachele Aragno (Mike Mignola’s Leonide the Vampire) – for development…