I'm going to come right out and say it...I liked Timepiece much more than Hourglass! I thought there was more adventure and mystery this time. The story was fast-moving as pieces of the puzzle fell into place on a regular basis and helped me understand the bigger picture. With a bad guy who wasn't just an invisible threat but was physically there at every turn, I couldn't read fast enough. 
 The characters' powers are growing and changing and their relationships are more intense than ever. They've also matured since the last book and the reader is given an insider's view into what makes them tick. All the characters from book one are here and they're still well written but I loved Lily in this book. She's so spunky and real that you just can't help but root for her. I also enjoyed the fact that this book explores not just romantic relationships but also those between friends, parents and children. 
 Unlike the first book, which was written from Emerson's point of view, this time we're given the pleasure of getting to know Kaleb's inner thoughts. Since he was my favorite character in the first book, I was very happy to have this story written from his point of view and equally pleased to get to know this bad boy with a heart of gold even better. My favorite Kaleb quote "I'm a bad ass. A bad ass who bakes when he's depressed!" really just says it all about this character and, quite honestly, makes my heart beat just a little bit faster. I don't know what the author's plans are for the next book but may I humbly suggest it be written from Kaleb's point of view again? With the twists this story took and the way it ended, I can't wait to see what happens next!