Not a bad ending to a YA time travel adventure. There were a lot of exposed secrets and deceit that some were expect and others weren't. The book didn't give closure to all of the characters involved, which I found kind of annoying. It only focused on Etta and Nicholas in the end. Sophia is still insufferable as usual, very selfish and immature, even though she is a good fighter and resourceful. There's a new villian which didn't seem to fit and was just kind of thrown in there and didn't make much sense to me. Overall, it's a good read, I just wish all of the loose ends were tied up and that the other villian wasn't randomly thrown in.