All will be revealed in the newest Pretty Little Liars novel, Unbelievable. After the devastating car accident that sends Hannah to the ground her family and friends are hoping she will make it out of her coma alive. Emily's parents start to accept her new changes after they think she is gone for good. Since Aria can no longer live with her now ex boyfriend she is forced to live with her dad and his new flame. Spencer is having new memories but are they for real or are they only parts and bits. By the time you find out who A is, you will be on the edge of your seat. The most chilling thing of all though is who killed Ali.
This book is one of the one's you cant put down. You will continue to say "Just one more chapter."About half way into the book I had A figured out but I would have never guessed who killed Ali. Let's just say this in one unforgettable book, because its unbelievable!