The Book that Proves Time Travel Happens - Reviews

Quite a few people who blog about Young Adult books have had some very kind things to say about The Book that Proves Time Travel Happens. Here's a random sampling. (Clicking on the review should - if the links remain intact - take you to the review's original source, which may be easier to read, and provide additional context.)
Modesty forbids me from pointing out that the next review, by Pragmatic Mom, counted the books down from ten and Time Travel wound up in the number one spot. But then, who listens to modesty?