This is written for a younger age group (maybe 11-13?), and I have to say first of all my 12 year old liked it too. She started it, got in a couple dozen pages and put it down, and I asked her why. "It seemed like I was reading the second or third book of a series and I didn't know what was going on". I told her it sucked you in a little further on, and she picked it back up and finished it in a day. I felt the same way. The authors had so much going on with so many new creatures, different color moons or suns or trees, governments and magic laws, it got a little overwhelming. I remember however, feeling the same way about Levin Thumps, and even Harry Potter. BUT, Nate, the main character sucked you in, and soon you were rooting for him, and like my daughter I finished the book in a night. The challenge will be to see if the authors can develop all of the pieces they have casually placed in their story through the next installments in the series making for a rich and varied world. Rowling did it, Tolkien did it, we will see what Jaeger does.