The Secret Sister and the Silver Knight (The Hero Chronicles #4) - Christine E. Schulze,  Joshua R. Shinn
Aaron and Chasmira have finally went on their first date. It was magical. However, Chasmira has been going into trances when she hears some strange music playing. It worries Aaron and he wants to do what he can to protect her. On their date, they fall asleep and Aaron wakes up to find Chasmira. She was put into a trance and followed the strange music to a portal and went into it. Aaron goes in after Chasmira and finds a surprise when he gets there. Can Aaron save Chasmira before its too late?This book may be short, but so much happens in it. There is so much I want to say, but if I say too much there will be a lot of spoilers and I don't want to spoil it for anyone. I almost cried while reading the last book, but this one did make me cry. To me, this book was sadder than the rest and I really felt for Chasmira. I felt so bad for her and still do. Even with it being sad, it was still an amazing book. I love it.