3.75 conflicting stars 
 I really really wanted to like this book and enjoy it, and I even ignored all the mixed reviews thinking it could not possibly be that bad. I was wrong. It was hard to get through this book, but it took so much effort for me to finish it. So many times I wanted to DNF this book because reading should not be work. Let me elaborate. 
 I loathed the main character Hope. She is such a snooty brat who acts like she knows everything. She made this book so unbearable to read because she was so dumb. I think if maybe she was written a little differently I would have enjoyed this book a lot more. The struggle she had with claustrophobia and anxiety had a reasonable explanation but got annoying whenever it required her to act, her typical feelings of not being pretty or being noticed by a boy were cliche and annoying. Pretty much all my issues lie with the main character. 
 I did however like the incorporation of history into the book. It helped to keep me interested in the story. Although it seemed that most of the original history got changed by the appearance of them traveling into the past. I also liked this unique spin on time travel giving it a big scientific origin rather than an "Outlander" comparison. I tell you this is nothing like Outlander. While it was hard to get through this book, I really enjoyed the ending. It was very good and built up very nicely. But I will say I'm not sure what direction this book will take with the way things ended and the next book will be different. 
 I will not be beating down the doors of B&N for the sequel, but I hope that this story only gets better because it has plenty potential and hopefully growth for the main character. I hope there is more Pheobe, Collum, and Bran.