Eclipse

Eclipse is the third book in the Twilight saga by Stephenie Meyer. It continues the story of 18-year-old Bella Swan and her vampire love, Edward Cullen. Eclipse is preceded by New Moon and followed by Breaking Dawn. The book was released on August 7, 2007 with an initial print run of 1 million copies, and sold more than 150,000 copies in the first 24 hours alone.
The story begins with the revelation that Seattle is being plagued by a string of unsolved murders, which Edward suspects are being caused by a vampire that is unable to control its thirst. Edward and Bella fill out college applications, while Bella explains to Edward her desire to see Jacob, her werewolf friend, again. Meanwhile, Alice Cullen has a vision that Victoria, a vampire who is hunting Bella for revenge, is back in town. Although Edward fears for her safety, Bella insists that Jacob and the rest of the werewolf pack would never harm her, and he eventually allows her to visit Jacob once in a while. A few days later, Edward proposes to Bella and, despite having an aversion to marriage, she accepts.
Bella and the Cullens realize that the murders in Seattle are being committed by an "army" of newborn vampires, controlled by Victoria. The Cullen family joins forces with the werewolf pack in order to combat this threat. As everyone else prepares for battle, Edward, Bella, and Jacob camp up in the mountains, hidden during the battle, where they are later joined by Seth Clearwater, a young member of the werewolf pack, to wait out the fight.
In the morning, Jacob overhears Edward and Bella discussing their engagement and becomes very upset. He threatens to join the fight and get himself killed. To stop him, Bella kisses Jacob and realizes that she is in love with him. Victoria tracks Edward's scent to Bella, and Edward is forced to fight. After Victoria and her army are successfully destroyed, Bella explains to Jacob that while she loves him, her love for Edward is greater. After receiving a wedding invitation from Edward, Jacob runs away in his wolf form to escape the pain he feels, angry at Bella's decision to become a vampire.