This document summarizes the plot of the fourth and final book in the Twilight saga, Breaking Dawn, by Stephenie Meyer. It discusses Bella and Edward's wedding and honeymoon, where Bella becomes pregnant with Edward's vampire-human child. The pregnancy threatens Bella's life and she must be turned into a vampire. Their daughter Renesmee is born but is targeted by the Volturi, who want to kill vampire children. Bella and Edward's family gather witnesses to prove Renesmee's maturity and save her, allowing the family to live happily together.