This book introduces a dramatic turning point in the stories and characters in the series. It is really intresting to see how the characters in these books evolve their purposes and techniquees over time, and, again, this episode truly offers a significant change! My son didn't like this one as much as the other three episodes so far, although even he thought it was a good book. I, on the other hand, recognize the possibilities and look forward to future additions in the series. It is possible that things will not be handled as well as I suspect, but the author has provided us with great activity and story so far! I decidedly look forward to future entries!