Breaking dawn - Stephenie Meyer

When you loved the one who was killing you, it left you no options. How could you run, how could you fight, when doing so would hurt that beloved one? If your life was all you had to give, how could you not give it? If it was someone you truly loved?

To be irrevocably in love with a vampire is both fantasy and nightmare woven into a dangerously heightened reality for Bella Swan. Pulled in one direction by her intense  passion for Edward Cullen, and in another by her profound  connection to werewolf Jacob Black, she has endured a tumultuous year of temptation, loss and strife to reach the ultimate turning point. Her imminent choice to either join the dark but seductive world of immortals or pursue a fully human life has become the thread from which the fate of two tribes hangs. 

Now that Bella has made her decision, a startling chain of unprecedented events is about to unfold with potentially devastating and unfathomable consequences. Just when the frayed strands of Bella's life - first discovered in Twilight, then scattered and torn in New Moon and Eclipse - seem ready to heal and knit together, could they be destroyed forever?