In The Evil Dead, Ash gives his girlfriend Linda a necklace prior to the first deadite incident in the cabin. At the end of the movie he used Linda's necklace to grab the Necronomicon Ex Mortis while he was pinned down by the deadites of his friends. In Evil Dead II, it causes the deadite Ash to remember his friends and how much pain the deadites had given him, turning Ash back to normal.