I was fortunate enough to get this as an ebook in exchange for an honest review, and I'm honestly glad I read it! This is a story about time travel, mystery, and action, with a healthy level of romance that would appeal to readers of young adult books and more. The time travel aspects of the story puts intriguing thoughts of timelines and time ripples in mind, definitely enough to make your head hurt a bit- just like the characters say it does. The story is very well paced, fast, but not so quick that you lose track of what's going on. In the beginning, I was a bit confused about where the story might be headed, especially where the romance was concerned, but it weaves together beautifully as the story unravels. Fans of the books Ruby Red and Sapphire Blue, or if you just like the idea of time travel, should definitely give this book a try: it is well worth it. The character development is done very well, and all of the characters felt relatable. I did miss getting to know some of the characters better, but I have a feeling they will be more present on the next book, which I am eagerly anticipating! Great book, great read, 5 stars.