What is the necronomicon evil dead?

The Necronomicon is a fictional grimoire, or magical tome, featured in the horror film "The Evil Dead" and its sequels. It is said to contain ancient knowledge of dark and powerful spells and incantations, and has the power to summon demonic forces. In the film, the Necronomicon is discovered by a group of friends in an isolated cabin in the woods, and its opening releases an evil force that possesses them and leads to a fight for survival against the demonic entities it summons. The book's origins are tied to the works of author H.P. Lovecraft, who created the fictional mythos that includes the Necronomicon as a recurring element in his stories.