John Carpenter's Cathedral

In the middle of downtown Los Angeles, an abandoned cathedral stands, fenced in and ignored by the world around it. The preoccupied passers-by have long since ceased to notice the dilapidated church in their midst, never mind sensing the danger and centuries old evil trapped inside its walls. A gruesome murder one late night pulls the structure into the spotlight, triggering a police investigation into the loss of one of their own. Lieutenant Christine Marks, along with detectives Paul Hernandez and Steve Mayfield, must enter the church in search of the monster that murdered her father. Every step takes them deeper into the belly of the church revealing the mystery of an ancient evil imprisoned within. For centuries, shamans, warriors and priests have fought a powerful demon, holding it to this piece of earth. Now it’s trying to rise again, and these three must learn the secrets of those who’ve gone before them in order to find the demon and end the centuries long battle, once and for all. Their stamina, resolve and faith will all be tested and every small victory along the way brings them closer and closer to indescribable horrors only hinted at in myths and nightmares.

Art by Federico De Luca
Art by Luis Guaragna
Colors by Sian Mandrake
Lettering by Marshall Dillon

John Carpenter's films are legendary. In 2026, The Thing joined Halloween in the Library of Congress for its cultural and historic significance. In addition to his groundbreaking electronic film scores, he’s released numerous studio albums. In comics, he co-wrote Big Trouble in Little China with Eric Powell and Old Man Jack with Anthony Burch. He and Burch also co-wrote DC’s Year of the Villain: The Joker. At Storm King Comics he is co-creator of the award-winning series, Asylum, Tales of Science Fiction, Night Terrors, Storm Kids and the annual anthology, Tales for a HalloweeNight.

John Carpenter’s Cathedral is a dark supernatural horror graphic novel created by John Carpenter in collaboration with Sandy King and Sean Sobczak. It takes place in the heart of downtown Los Angeles, where an abandoned cathedral has stood unnoticed for years. Surrounded by fences and largely ignored by the people passing through the city, the old church appears to be nothing more than a decaying building. But beneath its neglected walls lies something far older and more dangerous than anyone realizes. An ancient evil has been imprisoned beneath the cathedral for centuries, and a violent murder eventually sets in motion a chain of events that threatens to release it. The story combines police investigation, occult horror, ancient mythology, and psychological terror in a distinctly Carpenter-like atmosphere.

The story begins with a gruesome murder that immediately draws the attention of the Los Angeles police. What makes the crime particularly disturbing is that the victim is one of their own. Lieutenant Christine Marks is personally affected by the case because the murdered officer is her father. She is determined to discover what happened and refuses to accept an ordinary explanation for his death. Christine joins forces with detectives Paul Hernandez and Steve Mayfield, and together they are sent into the abandoned cathedral to investigate. What begins as a professional investigation quickly becomes something far more frightening as they realize that the building contains secrets that have been hidden for generations.

The cathedral itself becomes one of the most important elements of the story. It is not simply an old church or an atmospheric setting. It is effectively a prison built around an ancient supernatural threat. The deeper Christine, Paul, and Steve travel into the structure, the more they discover that the building has a history far beyond anything they had imagined. Hidden passages, forgotten chambers, ancient symbols, and disturbing evidence begin to reveal that the cathedral was constructed around a much older struggle. The familiar world of modern Los Angeles gradually gives way to a buried world of legends, rituals, sacrifice, and supernatural forces.

At the center of the mystery is a powerful demon that has been trapped beneath the cathedral for centuries. Long before the present-day investigation, shamans, warriors, and priests fought against this entity and somehow managed to confine it to a particular piece of land. Their efforts were not part of a single battle but an ongoing struggle passed down through generations. The people who came before Christine and her companions understood the danger and devoted their lives to keeping the creature imprisoned. Over time, however, the knowledge surrounding the ancient battle became fragmented and almost forgotten. The modern city grew around the cathedral, while the supernatural threat remained hidden underneath it.

The murder changes that situation. The ancient evil is no longer completely dormant, and something is beginning to disturb the prison that has held it for so long. Christine and the two detectives are therefore not merely looking for a murderer. They are entering the middle of a conflict that has existed for centuries. Their investigation forces them to follow clues left behind by people who fought the demon long before modern police departments, technology, or even the city of Los Angeles existed. To survive, they must understand the methods and sacrifices of those earlier generations.

Christine is especially important because her investigation is deeply personal. She is not simply following orders; she is searching for answers about her father's death. Her grief and determination push her deeper into the cathedral even when the evidence suggests that she should turn back. Her emotional connection to the case gives the story a human center. The supernatural horror becomes more frightening because the characters are not fearless heroes entering an imaginary world. They are ordinary people confronting something they were never prepared to understand.

Paul Hernandez and Steve Mayfield provide additional perspectives as the three investigators gradually uncover the truth. Each of them is forced to confront the limitations of ordinary logic. At first, they approach the cathedral as police officers investigating a crime. They look for evidence, identify possible suspects, and try to reconstruct what happened. But the deeper they go, the more impossible their discoveries become. The investigators are eventually forced to accept that the case cannot be solved using conventional methods alone. They need to understand the supernatural history of the place if they are going to survive.

The novel's horror grows through this gradual revelation rather than depending only on sudden violence. The cathedral becomes increasingly claustrophobic as the characters descend into its hidden depths. Every discovery suggests that something worse is waiting further below. Ancient writings and remnants of past battles reveal the scale of the danger, while the investigators begin to understand that the stories they once might have dismissed as superstition were actually warnings. The demon is not a myth created to frighten people. It is a real and extraordinarily powerful entity that has been waiting for an opportunity to return.

Faith is another important theme running through the story. The original shamans, warriors, and priests relied on different forms of spiritual knowledge and courage to keep the evil imprisoned. Christine and her companions inherit the consequences of their struggle without necessarily sharing their beliefs. As the investigation progresses, however, the modern characters are forced to confront questions that science and police procedure cannot easily answer. Their survival depends not only on physical strength but also on their ability to believe in something beyond what they can see and understand.

The characters' journey is therefore both physical and psychological. Every step deeper into the cathedral brings them closer to the imprisoned demon, but it also strips away their assumptions about reality. They begin with the confidence that they are investigating a murder and gradually realize that they are participating in an ancient battle. The closer they come to the source of the evil, the more their stamina, courage, and faith are tested. Even small victories are temporary because each one brings them closer to a much greater horror.

The story's atmosphere is central to its appeal. Carpenter's horror has always been associated with isolation, darkness, suspense, and the feeling that ordinary places can conceal extraordinary evil. Cathedral follows that tradition by transforming a familiar urban environment into a gateway to something ancient and terrifying. The contrast between busy Los Angeles above ground and the nightmare world beneath the cathedral makes the setting particularly effective. The city continues its ordinary life while an unimaginable supernatural threat exists almost directly beneath its streets.

Ultimately, John Carpenter’s Cathedral is a story about an ancient evil returning after centuries of imprisonment and the unlikely group of investigators who must stop it. Christine, Paul, and Steve begin by seeking justice for a murdered officer, but their mission becomes a fight for survival and for the future of the city. They must uncover the secrets left behind by generations of people who fought the demon before them and find a way to complete a battle that has never truly ended. The graphic novel turns a murder investigation into a descent into supernatural darkness, blending modern police drama with occult mythology and visceral horror. Its central idea is both simple and frightening: sometimes the greatest dangers are not new threats but ancient evils that humanity has merely forgotten how to fear.