This is the fourth installment of Chris and Sarah's journey and starts right where the previous book left off. Rebecca is still missing and we can presume dead with Ava's confession when she was trying to kill Sarah. We find Mark had started to fall apart and Ella is still missing. There is a lot going on in this book and at times I'm not sure I want t keep up. The ending clears up some questions, well maybe. This is not a stand alone. The next book will continue with Marks drama. Mark intrigues me. I'm excited about the next book to dig further into Mark's story.