Dragon School

I read this book when i was much younger and loved it! I've had it since I was 10 and just lent it to my baby brother who is also enjoying it greatly. I was just wondering: the cover says it's the first in a series, but I haven't found any of the other books. Does anyone know about them?

My 9 year-old son isn't into reading at all, but he is into mysteries and computers and fantasy, and this book has all three. When he picked up this book, he literally couldn't put it down! We read a chapter a night together, and I actually caught him trying to sneak ahead! While there were a few big words that he didn't know, it was a great way to teach him new vocabulary skills. It really was a fun book for grownups to read as well. I'd definitely recommend this book for boys or girls in 3-6 grade.