Is it a spoiler to guess at the ending of a book you have no intention of reading?
Bear with me momentarily: Here is S. Krishna's review of the young adult book Choker.
And here is my wager the book concludes with the childhood friend being a figment of the protagonist's imagination, sort of like Fight Club for teenage girls.
That's a second spoiler, isn't it? Huh.... But Fight Club (the movie) came out more than 10 years ago, peeps, so don't hate me. Prove me wrong.
Back to essay-writing.... Oh! And strong recommendations you read this book. I haven't read more than a chapter yet (for a class on media representation), but it's on my list.