Bella nearly dies giving birth but Edward successfully delivers their baby girl and then injects his venom into Bella's heart, thus healing her wounds by turning her into a vampire. During Bella's painful transformation, Jacob imprints—an involuntary process in which a shape-shifter finds his soul mate—on the baby, Renesmee Cullen.
After a vampire named Irina mistakes Renesmee for an immortal vampire child (a creation that is forbidden in the vampire world), Alice foresees the Volturi will arrive to destroy the Cullens as punishment for the alleged transgression. The Cullens find an array of vampire witnesses to observe the mortality of Renesmee. Bella soon discovers her ability to shield people from their mental thoughts and senses. Edward stands with Bella and their allies to convince the Volturi that Renesmee is not an immortal child and poses no threat to their existence. Once the Volturi leave, Edward and Bella are finally free to live their lives in peace with their daughter forever.