When the sun never rises, the shadows hold every secret…
Get ready for the ultimate mash-up of high-adrenaline action, gritty noir mystery, and supernatural horror!
This summer, Mad Cave Studios invites readers into the shadows with ENDLESS NIGHT, a genre-smashing collision of archetypal heroes by celebrated writer Mark London (Battlecats, Hunt.Kill.Repeat.) and acclaimed artist Tom Derenick (Justice League)!
It’s brooding cityscape, morally complex figures, and relentless descent into mystery, Endless Night is a defining and compelling event in Mark London’s Underworld interconnected universe, drawing four of its most captivating characters into an unholy union against sinister power-brokers and ancient evils—and in so doing, binding them irrevocably together to set the stage for future adventures.
With colors by Juancho Velez and letters by Simon Bowland, Endless Night #1 debuts with two striking covers: Cover A by Chris Weston (The Filth, Judge Dredd) and Cover B by Declan Shalvey (Moon Knight, Bog Bodies), each capturing the ominous tension of Mark London’s Underworld.
ENDLESS NIGHT
Writer: Mark London – Artist: Tom Derenick
Colorist: Juancho Velez – Letterer: Simon Bowland
Release Date: June 4th, 2025
Synopsis: When Axel Black, an obsessive tech billionaire and head of the sinister Order of Nine, sends his operatives to Exit City in search of a dangerous mystical artifact, only a team of unlikely allies from different corners of the underworld can prevent an apocalyptic catastrophe: VELVETEEN, the elite rogue assassin hellbent on revenge; McCORMICK & MILLER, two detectives keeping peace in a lawless city; and OWEN BLACKWOOD, a monster hunter duty-bound to stop evil. But tensions are mounting, and time is running out! ENDLESS NIGHT is Mad Cave’s miniseries event of Summer 2025, a genre-smashing collision of archetypal heroes by celebrated writer MARK LONDON (Battlecats, Hunt.Kill.Repeat.) and acclaimed artist TOM DERENICK (Justice League), set in the universe of dark conspiracies, hard-boiled mystery, and unnatural menace known as UNDERWORLD!
Meet the Creators!

Writer, Mark London
Mark London is the CEO & Creative Director of independent publisher Mad Cave Studios, as well as the author of multiple hit series including Battlecats, Wolvenheart, Honor & Curse, Knights of The Golden Sun. His central focus is to provide a compelling experience through action-driven storytelling and immense world building with the goal of giving readers more than just a comic.
“Endless Night, our inaugural crossover piece for the Underworld universe, and it’s where my childhood dreams have taken form. It’s where the relentless rhythm of Revolution 9, the eerie whispers of Hour of the Wolf, and the gritty vibes of Exit City converge. These worlds, steeped in action, horror, and noir, are the essence of my creative soul and the foundation upon which Mad Cave Studios was built. Growing up, these narratives fueled my imagination, and now they have become my reality. Through this crossover, I aimed to explore the delicate dance between light and shadow, and how they shape the human experience.”
— Writer, Mark London
SNEAK PEEK!
Fans of Hellboy, Something Is Killing the Children, and Kill or Be Killed will be drawn to the blend of mystery, horror, and action in Endless Night. With its atmospheric noir aesthetic and supernatural dread, the series echoes the tension of Sin City and the haunting unease of Penny Dreadful.
Endless Night #1 arrives on June 4th—preorder now at your local comic shop or directly from the official Mad Cave Studios website. Dive deeper into Mark London’s Underworld universe with Revolution 9, Hour of the Wolf, and Exit City, all available now.
Get the latest news on Mad Cave Studios on social media, or visit madcavestudios.com to check out the full lineup of new releases, licenses, and celebrated creator-owned titles!
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