Adventure Time’s first-ever Halloween special comic, featuring Finn and Jake in a spooky dungeon scenario, is set to release on September 30th.

The press release follows:

Media Release – BOO FROM THE LAND OF OOO! ADVENTURE TIME’S FIRST-EVER HALLOWEEN SPECIAL COMIC BOOK IS COMING SOON! Oni Press, the multiple Eisner and Harvey Award-winning publisher of groundbreaking comics and graphic novels since 1997, and Warner Bros. Discovery Global Consumer Products (WBDGCP) are proud to present the ADVENTURE TIME HALLOWEEN SPECIAL?#1 – a spooky-sized 48-page special from writer Jeremy Melloul (Dungeon Masters Guild) and rising star Adam Seats (The 47th Plane) that finds Finn and Jake in their trickiest situation yet when it arrives in comic shops on September 30th!



After signing up for a quest from the Adventurer’s Guild without reading the fine print, Finn and Jake find themselves in a new dungeon — turning into some of its monstrous inhabitants! Stuck in strange bodies, fighting familiar faces, and attempting to get to the bottom of this mysterious place, can our dynamic duo best this unearthly dungeon or will they fall victim to the monsters within . . . and within themselves?

Tricks and treats abound in this monster-sized ADVENTURE TIME HALLOWEEN SPECIAL #1 with creepy covers from Sean Dove (Sesame Street), Agustin Morales (Go Go Proton!), Violet Tobacco (RWBY: Fairy Tales of Remnant), and interior artist Adam Seats. Don’t miss out on the fun when the adventure begins on September 30th!

For more updates on Oni Press, visit them on Bluesky, Facebook, and Instagram.

Adventure Time: Halloween Special #1 (One-shot)
Writer: Jeremy Melloul
Artist: Adam Seats
Cover A: Sean Dove
Cover B: Agustin Morales
Cover C: Violet Tobacco
Variant Cover (1:10): Adam Seats
On Sale: 9/30/2026
$7.99 | 48 Pgs. | FC

ONI PRESS

THE LOUDEST THING IN COLOR SINCE ‘97. For nearly 30 years, Oni Press has carved a distinctive path as one of the world’s most respected and acclaimed publishers of award-winning comic books and graphic novels, including Bryan Lee O’Malley’s Scott Pilgrim, Maia Kobabe’s Gender Queer, Cullen Bunn & Brian Hurtt’s The Sixth Gun, Brenna Thummler’s Sheets trilogy, Jay Stephens’ Dwellings, Ezra Clayton Daniels’ Upgrade Soul, LySandra Vuong’s Covenant, and many hundreds more. In 2019, Oni Press merged with Lion Forge Comics – the Eisner Award-winning independent comic book publisher founded by Academy Award-winning producer and entrepreneur David Steward II – to create one of the largest, independent libraries of comics content anywhere in media. The Oni-Lion Forge Publishing Group now exists as a publishing subsidiary of Steward’s diversified global media company, Polarity.

The Oni-Lion Forge Publishing Group publishes more than 60 original and licensed graphic novels annually, in addition to an extensive roster of periodical comics for globally recognized properties including Adventure Time, Biker Mice from Mars, Choose Your Own Adventure, Cult of the Lamb, EC Comics, Murder Drones, Rick and Morty, and more.