"Twilight" would be listed in the genre of young adult literature, fiction, and Romance. Some people will try to list it in Gothic Romance, but most libraries and book stores do not have it marketed in that area. It is definitely more Romance than Gothic. The climax is when James attacks Bella begins to rough her up. Just before he goes in for the kill Edward and the Cullens arrive and save her life. The Major Themeis the romance between Edward the vampire and Bella the human. The Minor Theme is the conflict between the tracker, James, and his desire to kill Bella.