I downloaded the first few chapters of this while I was looking for free stories for my kid's MP3 players. I listened to it to make sure it was suitable and found it intriguing enough to buy the rest. My kids like it, although we haven't gone on a long enough journey yet to listen to the whole thing through from beginning to end. It is definitely worthy stuff, and my kids enjoy it. The tunes are maddeningly catchy! I approve, my only reservation being how long the kids will listen to it. Have a hunch it might last.