I enjoyed the trip to Australia, both the more populated areas and the outback, and then to some islands of Indonesia. Though the Cahills, and thus us as well, are brief visitors to most of these places, they still gave me a chance to learn a little bit about somewhere I'll never go. Plus, I was curious enough to look online at some maps of the islands involved, which gave me a nice visual. The story was similar in pacing, mystery, and intrigue to previous books in the series, and I didn't notice any major differences in characterization either. Amy and Dan seem to be maturing, which one would expect, given when they've gone through so far.

I suppose it's all on purpose, but I struggle a lot with a book series in which I truly cannot trust anyone except the two main characters. And more than that, even supposed deaths can't be trusted in this series. This book in particular introduced a dangerous new character, (maybe) lost an existing one, and started to cast suspicion on someone that's seemed trustworthy from the start. I do appreciate being given some insight into the death of Amy and Dan's parents and assume more information about that will come in later books.

While I have had some frustrations with the series, and with this book in particular—for example, how do the other Cahills always seem to know where Dan and Amy are going to be? Sometimes it can be explained by saying they're going to an obvious place to find clues, but randomly going surfing, spur of the moment, and being found by the Holts? Really? Who's the mole in this outfit?—from past experience, I think they're the kind of thing that kids won't be as bothered by. There is a lot that I enjoy about this series, and now that I'm more than halfway through it, I'm pretty invested. I really do want to know what's going to happen, especially since, as of this book, I have developed a theory and a prediction about the ending. It's the kind of thing I feel like I should have been able to start guessing at sooner, but that kids of the age this series is meant for might not think of at all. I'm looking forward to seeing if I'm right! ( )

Highly disappointed. Bad plotting. Bad execution. Just no. ( )