The Necronomicon Possession

Lore & Background

In the mythology of the Evil Dead universe, the Necronomicon Ex-Mortis is a book of the dead—a grimoire whose pages are inscribed with the names and binding rituals of entities that exist in a hellish dimension beyond the mortal world. The book is not merely a reference text; it is a living conduit. When its words are spoken aloud, the barrier between dimensions thins, and a demonic presence seizes the reader's body. The victim's eyes roll back, their jaw distorts, and they are reborn as a Deadite: a shambling, superhumanly strong creature driven by an insatiable hunger for flesh. The possession is not a temporary affliction. Once the transformation takes hold, the original person is effectively gone, and only the demon wearing their face remains.

The book's binding is said to be made of human skin, and its pages are stained with the residue of countless previous readings. It has a history that predates any single character in the franchise, passing through hands across centuries. In the films and series, it is typically discovered in an old cabin, a hidden cellar, or a forgotten archive, and its presence is almost always the inciting incident. The lore suggests that the book chooses its readers as much as they choose to read it, drawn by curiosity, arrogance, or desperation.

For Ash Williams specifically, the possession thread is personal and recurring. He is the one who most often reads the book, gets possessed, and then must fight his own deadite counterpart or purge the demon from his body. This cycle—reader, victim, warrior, survivor—defines his character across every entry and is the emotional core of the franchise's identity.

In Their Own Story

The cabin smelled of damp pine and something older, something that had no name in any language Ash had ever learned. The book sat on the kitchen table like a sleeping animal, its cover black and cracked, the pages fanning slightly as if breathing. Linda had found it in the cellar. 'It's just an old book,' she'd said, and then she'd started reading, and then her voice had stopped being hers.

Now Ash stood in the doorway, chainsaw still warm in his hands, watching the thing that had been Linda drag itself across the floor on arms that bent the wrong way. Her mouth was a red slit. Her eyes were gone. The book lay open on the table, and the words on the page were still moving, still being spoken by a mouth that wasn't there.

He'd seen this before. He'd always seen this before.

He set the chainsaw down. Picked it up again. Set it down. The thing that had been Linda turned its broken head toward him and smiled with too many teeth.

'Alright,' Ash said, and the word came out flat, tired, the voice of a man who had done this so many times it had stopped being a story and started being a Tuesday. 'Alright. Let's do this. Again.'

Reader's Guide

The Necronomicon Possession is a narrative thread rather than a single titled work, so its 'plot' is best understood as a recurring structure that the franchise repeats and recontextualizes.

In the 1981 original, a group of young adults in a remote mountain cabin discover the Necronomicon in the basement. One of them reads from it, is possessed, and becomes the first Deadite. The remaining survivors must fight to escape the spreading infestation. This establishes the template: discovery, reading, possession, survival.

Evil Dead II (1987) escalates the thread by making Ash himself the reader and the possessed. The possession is no longer something that happens to a friend across the room; it happens to the protagonist, and the film becomes a battle against his own deadite body. The tone shifts toward dark comedy, but the core horror of the book's power remains intact.

Army of Darkness (1992) places the Necronomicon at the center of a medieval siege narrative. Ash must read from the book to summon the Necronomicon's power, but the act also risks unleashing the very demons he is trying to stop. The possession threat is now tied to a larger apocalyptic stakes.

The 2013 remake reboots the thread with a new cast, and Evil Dead Rise (2023) reframes it as a prequel, showing how the book's influence spreads through a family in an urban apartment building, expanding the setting while keeping the possession cycle at its heart.

Ash vs. Evil Dead (TV, 2015–2021) treats the Necronomicon and its possession effects as a recurring threat across multiple seasons. The book appears, disappears, reappears, and each encounter tests Ash's ability to resist or reverse the transformation. The series also introduces the idea that the book's power is not a one-time event but a persistent, almost gravitational force in the world.

The throughline across all entries is the same: the book is a trap, the reading is the trigger, and the possession is the consequence. Every entry asks the same question in a different key—what happens when you give the book a voice, and what does it cost the person who lets it speak?

Did You Know?

• The Necronomicon Ex-Mortis is the same book that appears across the 1981 original, both sequels, the 2013 remake, the 2023 prequel, and the entire Ash vs. Evil Dead TV series, making it the single most recurring prop in
• In the 1981 film, the characters initially dismiss the book as a harmless curiosity, and it is only after one of them reads aloud that the first possession occurs—a pattern the franchise repeats in nearly every entry.
• Ash Williams is the only character in the franchise to be possessed by the Necronomicon's power multiple times across different entries, making the possession thread deeply personal to his character arc.
• The Deadites—the possessed creatures that result from the book's power—are characterized by their superhuman strength, bone-cracking combat style, and an insatiable hunger, making them one of the most visually distinctiv