If you’ve read the previous two books in the Peter Pan prequel trilogy, then you ought to take the time to read through this last book in the series. It follows the other books pretty logically, and it maintains the same sense of whimsy, adventure, and imagination that the previous books had. Unfortunately, it’s a little dense with detail, and more than a little overlong in its presentation.
Let’s be honest for a moment: Peter and the Starcatchers was really the only book necessary as a prequel to explain why Peter became the flying, ageless boy that we all know from fairy tales. My guess is that the story was originally planned as a standalone book, and after it proved to be popular, the publisher asked the authors to write the prequel into a trilogy. Think of how Star Wars was a nice, complete film in and of itself, and how The Empire Strikes Back and Return of the Jedi seemed a little … well, not tacked on, but at least produced based on the first movie’s success. The way the story develops over the course of the novels suggests that the Peter Pan prequels were written in much the same way.
To carry the Star Wars analogy a bit further, reading Peter and the Secret of Rundoon was a little like watching Revenge of the Sith — by the end, the authors seemed to be struggling to connect everything from the first two books to everything that followed after, resulting in some plot tangents that probably wouldn’t have existed in a standard book. It’s like they were trying to cram as much as possible into the final volume, making the end result a little messy. There seemed to be three major plots going on in the book, and each one resolved itself more or less independently from the others. In that sense, it was a little like watching the end of The Return of the King, with the viewer wondering when, exactly, the movie was going to officially end. And I probably should stop comparing the book with movie trilogies, lest I lose my point entirely.
So, it’s a good read, and reminiscent of the previous two books in the series. If you can divorce yourself from the fact that the last two books in the trilogy really aren’t necessary, and don’t mind the meandering cross-wise plots, you should enjoy the book. At they very least, they’re entertaining and compelling.