I don't know if this would be considered plagourism, but repeat some exact lines from the preface because it's very interesting, about her death and everything. You might even say it in third person instead of having it be like Bellas saying it, here: (if you want it in 3rd person)
Bella had never given much thought to how she would die-though she'd had reason enough in the last few months-but even if she had, she would not have imagined it like this.
Surely it was a good way to die, in the place of someone else, somebody she loved. Noble, even. That ought to count for something.
Then go on to tell about the rest of the book. I'd suggest asking your teacher about it first to make sure its not plagourism or anything, but that would really catch my attention.
Hope I helped!