Underworld Collection Volume One: 1

Descending into the underbelly of a fractured world, the Underworld Collection unleashes pulse-pounding action and expansive myth-making as Mark London forges a dark saga where survival and power collide in a perilous arena of the unknown.

From acclaimed writer Mark London comes a gritty, supernatural descent into a realm of dark conspiracies, brutal mysteries, and lurking menace. This omnibus brings together four electrifying graphic novels—Revolution 9, Hour of the Wolf, Exit City, and the epic crossover Endless Night. Brought to life by the haunting visuals of artists Carlos Reno, Danilo Beyruth, Karl Mostert, and Tom Derenick, the UNDERWORLD reveals itself: cursed streets, corrupt institutions, monsters hiding in plain sight, and secrets that refuse to die. Dive deep. Trust no one. Escape is never guaranteed.

Mark London is the founder, CEO, and Chief Creative Officer of Mad Cave Studios and the writer of Battlecats, Knights of the Golden Sun, Honor and Curse, Wolvenheart, and Hunt. Kill. Repeat. He created the Underworld shared universe, including Revolution 9, Hour of the Wolf, Exit City, Endless Night, Honor and Curse: Eternal, Mister Nemo, and Victoria Jaguar, and writes Terrorbytes with Mark Russell. Since 2014, he has grown Mad Cave into a four-imprint publisher closing in on 1,000 releases. He writes action-driven stories built on worlds big enough to get lost in, all on a promise he made to his wife to chase this dream and not do it halfway. Born in Colombia, he lives in San Diego. Always read the best comics first.

Karl Mostert was a dynamic comic book artist known for his energetic linework and expressive character storytelling. His credits include work for DC Comics on titles such as Nightwing, Teen Titans, and Future State: Gotham, where his style brought both action and emotional clarity to the page. His work continues to resonate with readers, and he is remembered as a distinctive and talented voice in modern comics.

Tom Derenick is a professional comic book artist and illustrator. He began his career in 1992 working for Malibu Comics on the title Ferret. His first published work for DC Comics was in 1994 in the title Star Trek. He was later hired by Marvel Comics and has worked on titles such as Night Thrasher, Venom, X-Men and more.

Fabi Marques is a Professional Comic Book Colorist. She has worked with DC Comics, Mad Cave, Dauntless, Ubisoft, Panini and several indie publishers.

Dave Baron is an acclaimed comic book colorist known for his dynamic, cinematic approach to storytelling. His extensive credits include The Authority, JLA, 52, and Global Frequency, with a career spanning major work for both DC Comics and WildStorm. Beginning in the industry at just 15, Baron has become a trusted collaborator for top creators, bringing depth, atmosphere, and clarity to every page.

Dave Sharpe is an artist and currently a letterer for various featured comic publishing companies within the industry. He graduated from the Joe Kubert School of Cartoon and Graphic Art, Inc. in 1990, and immediately went to work at Marvel. As of 2009, Dave has been lettering for DC Comics on a number of titles currently: Green Lantern, Green Lantern War Journal, and ACTION COMICS! Dave also letters LOTS of other books and titles for various publishers. Dave plays bass guitar and is way more approachable than he looks.