Eclipse-Sequel to New Moon, which snagged #1 on the American Library Association's 2007 Teen's Top Ten list.
As Seattle is ravaged by a string of mysterious killings and a malicious vampire continues her quest for revenge, Bella once again finds herself surrounded by danger. Victoria and Iher newborn vampire coven are out to get her. In the midst of it all, she is forced to choose between her love for Edward and her friendship with Jacob—knowing that her decision has the potential to ignite the ageless struggle between vampire and werewolf. With her graduation quickly approaching, Bella has one more decision to make: life or death. But which is which? Who will she choose? And who will she hurt in the end?
Chapter one begins with a note from Jake to Bella. It explains that he misses her as well, but that this changes nothing between them. Charlie still wants nothing to do with Edward, attempting to show with every word and gesture that the vampire is unwelcome in the house. Seattle is revealed to be plagued by a string of unsolved murders. Charlie 'un-grounds' Bella, but on the condition that she spend more time with her friends, especially Jacob, and not just Edward. Edward and Bella continue filling out their college applications, while Bella explains to Edward her desire to see Jacob again. Edward refuses explaining that werewolves are "unstable" and that those who associate with them often get hurt. Meanwhile, Alice has a vision that Victoria, the vampire that is hunting Bella, is back in town, so Edward, keeping this knowledge from Bella, talks Charlie into letting them take a weekend trip to Florida to see Bella's mother. When they return, Jacob confronts Edward as to why he is keeping Victoria's return a secret from Bella, also discussing the treaty's bounds as the Cullens crossed the territorial line while chasing Victoria into werewolf territory. Edward explains to Bella that he took her away from Forks as an attempt to keep her safe. Jacob and Bella reconcile to Edward's disapproval, however, he assures Bella that the only reason he doesn't want her seeing Jacob is because werewolves can be dangerous. Edward kisses Bella, telling her not to go anywhere near Jacob because he loves her and can't live without her.
Bella insists that Jacob and the rest of the pack are safe and that Jacob would never harm her. Edward finally agrees with her and willingly takes her, on occasion, to the border (the area where the pact between the Quileutes and the Cullens was made, and where both can travel freely), where Jacob picks her up and takes her to his house. During one of these visits, Jacob clarifies his emotions toward Bella; he reveals that he loves her and forcefully kisses her, much to her displeasure. She reacts by punching him as hard as she can, succeding only in breaking her hand as werewolves are almost as durable as vampires.
Edward threatens Jacob when Bella is brought back home. Jacob clarifies what occurs, and they make a treaty and promise to work together. Later that night after Jacob leaves, Bella agrees to marry Edward on one condition: that he sleep with her before turning her into a vampire. Edward initially refuses, explaining to Bella that he could very well kill her. He eventually agrees that he is willing to try in the future as long as they are already married, however. Bella expresses the worry of what other people will think if she gets married so early, as she remembers the problems that marrying fresh out of high school caused her mother. She realizes that spending the rest of eternity with Edward is more important to her than anything else, however, and when Edward formally proposes to her, she accepts. She is still reluctant to the marriage and engagement as a whole, however; in an attempt to keep the engagement secret, she refuses to wear the engagement ring, which belonged to Edward's mother.
Bella discovers that a vampire has taken things from her room for the purpose of using her scent to locate her. Meanwhile, the Cullens realize that there is a coven of newborn vampires committing the murders in Seattle. Bella soon makes the connection between both incidents, and realizes that the new vampires are being led by Victoria. Alice foresees a battle between Victoria's coven and the joined forces of the werewolves and the Cullens.
Jasper tells his story and to the Cullens advantage he is an expert in dealing with newborn vampires, since he was once part of a large and powerful army of newborns. He trains the Cullens and the werewolves in "newborn combat" and asks Bella to provoke them by leaving her scent. Bella asks Edward to stay out of the fight because she cannot bear to lose him.
As everyone else prepares for battle, Edward and Bella camp up in the mountains, where they are joined by Jacob and Seth-a younger member of the pack- in wait of the war. Bella and Edward use Bella's scent to set a trap for the newborns to follow, which will lead them to face the Cullens and the werewolves. Bella succumbs to the numbing cold at the top of the mountain where they are staying, and Jacob, with the intention of taunting Edward, slips into Bella's sleeping bag in order to keep her warm (a werewolve's normal core body temperature is 10 degrees above that of a human). Feigning sleep, she hears a conversation between Edward and Jacob, in which Jacob openly confesses his feelings for Bella to Edward. And Edward admits that Jacob can give Bella some things that he, Edward, can't. The two of them come to an understanding. Edward still feels a little odd because of this interference.
In the morning, Edward and Bella begin talking about their engagement; they hear a howl of pain, and Bella realize that it is Jacob, who had been listening in to their conversation. He runs away before Bella can reach him, and so she asks Edward to go after him. When they come back, Edward gives them some space to talk. Jacob threatens to join the fight and get himself killed; when Bella begs him not to, he insists that she ask him to kiss her so he won't kill himself (later on, it is revealed that he had tricked her into believing he would). She does so, and she realizes that she is in love with Jacob after they kiss, but her love for him is not as intense as her love for Edward.
When Edward returns, he admits that he overheard everything and that he's not angry at her for loving- and kissing- Jacob; this makes Bella feel guilty. As the two stay at the camp with Seth, Victoria attacks with her newborns. The other werewolves and Cullen family make short work of her inexperienced army, but Victoria goes around the battle completely. She soon arrives to confront Bella and Edward, along with one of her newborns named Riley, whom Edward recognizes. Edward tries to talk Riley out of fighting for Victoria, and almost succeeds, but at the last second, Victoria bolster's Riley's faith in her, and he refuses to back down. A fight breaks out, and in the end Seth (in his wolf form) kills Riley with Edward's help, and Edward destroys Victoria.
The Cullens, as well as the pack, are unharmed during the fight; but it turns out that Jacob was injured when Leah Clearwater (one of the werewolves) tried to take on one of the newborns alone. Jacob stopped the vampire from killing her, but the entire right side of his body was crushed in the process. Carlisle assures Bella that he is healing and that no permanent damage was done. The Volturi arrive to clean up the war, but they are too late. They remind Edward of the agreement they had to change Bella into a vampire, to which Alice replies that the date has been set.
Bella goes to visit Jacob, who is on the mend. After talking, they admit that they love each other, but Bella insists that she cannot live without Edward. However, Jacob tells her that if she ever changes her mind, he will always be there for her.
After going back to the meadow that she first saw Edward's skin reflecting the sun in, Edward announces that he's decided to break off the deal and they needn't get married, that Bella could have her way, before trying to complete what she wished. However, Bella has realised that she wants to do things the way he wanted to, and agrees to follow the plan of marrying him before sleeping with him and becoming a vampire. It is then that she asks for the engagement ring so they can tell Charlie.
The epilogue is from Jacob's perspective. He receives an invitation to Bella and Edward's wedding, and feels angry now that it is clear Bella will go through with "killing herself." He also finds a letter from Edward within the invitation; Edward tells Jacob that he doesn't have to come to the wedding if he doesn't want to, and thanks him for all he's done for Bella. The letter only angers Jacob further. Ignoring the questions and pleas of the pack, he changes into his wolf form and runs off, wanting nothing more than to "leave Jacob Black behind." He decides that he is no longer hurt that Bella would choose Edward over him; however, he questions how things would be between them once Bella becomes a vampire.