Stephenie Meyer has stated that the apple on the cover represents the forbidden fruit from the Book of Genesis. It symbolizes Bella and Edward’s love, which is forbidden, similar to the fruit of the Tree of Knowledge of Good and Evil, as is implied by the quote from Genesis 2:17 that is quoted at the beginning of the book. It also represents Bella’s knowledge of what good and evil are, and the choice that she has in partaking of the "forbidden fruit", Edward, or choosing not to see him.
It is the first book of the Twilight series, and introduces seventeen-year-old Isabella "Bella" Swan, who moves from Phoenix, Arizona to Forks, Washington and finds her life in danger when she falls in love with a vampire, Edward Cullen. Cullens are vegetarian-vampires, as they do not hunt human beings for there thirst.
Bella attracts much attention at her new school and is quickly befriended by several students. Much to her dismay, several boys compete for shy Bella’s attention.
When Bella is seated next to Edward Cullen in class on her first day of school, Edward seems utterly repulsed by her. He disappears for a few days, but warms up to Bella upon his return; their new-found relationship reaches a climax when Bella is nearly run over by a fellow classmate’s van in the school parking lot. Edward saves her life when he instantaneously appears next to her and stops the van with his bare hands.
Bella becomes determined to find out how Edward saved her life, and constantly pesters him with questions. After a family friend, Jacob Black, tells her the local tribal legends, Bella concludes that Edward and his family are vampires who drink animal blood rather than human. Edward confesses that he initially avoided Bella because the scent of her blood was too desirable to him. Over time, Edward and Bella fall in love.
Their relationship is disturbed when another vampire coven arrives in Forks. James, a tracker vampire who is intrigued by the Cullens’ relationship with a human, wants to hunt Bella for sport. The Cullens attempt to distract the tracker by splitting up Bella and Edward, and Bella is sent to hide in a hotel in Phoenix. There, Bella receives a phone call from James, who claims to be holding her mother captive. When Bella surrenders herself, James attacks her. Before she is killed, Edward, along with the other Cullens, rescues her and defeats James. Once they realize that James has bitten Bella’s hand, Edward successfully sucks the poison from her bloodstream and prevents her from becoming a vampire, after which she is brought to a hospital. Upon returning to Forks, Bella and Edward attend their school prom and Bella expresses her desire to become a vampire, but Edward refuses.