I am not a regular reader of YA, but if you are looking for a Pringles book (betcha can't read just one chapter...) that won't let you stop reading it until you're done- this is the one for you. If you stick with it through the first few pages of exposition, you will be very, very glad you did. This is Carter's debut (the first of a trilogy - and believe me, if you read this one, you'll get the second one), and she does an excellent job of pacing the action, giving just enough description of the time-travel construct to blow your mind without becoming bogged down by it. The teen romance is also spot-on: Lydia doesn't have any stupid Bella-Swan-like quirks - she's just a normal girl who finds herself in an incredible situation. I know that readers of more literary fare often look down their noses at YA (I admit to doing it myself), but I believe that even the most ardent French literary theorist secretly craves word candy once in a while - this book will keep you reading and make you wish the second installment was already out.