Ash Vs Evil Dead introduced a new villain in the form of Lucy Lawless' Ruby, who is revealed to have written the infamous Necronomicon Ex-Mortis.

Evil Dead's Necronomicon Ex-Mortis summons an ancient evil to do battle with Ash Williams.

Ash's adventures in the Evil Dead franchise all began with a book: the Necronomicon Ex-Mortis. But what's in it that has the power to create chaos?