Got this to read when I saw it available on Kindle because the prequel "Dragon Magic" was a favorite from childhood. (I read that book so many times! Loved it.)
This one was hard to get into, and I finally forced myself to finish. (Weird, because ancient Babylon is such an interesting setting. Imagine seeing the Ishtar Gates in situ and walking around the Hanging Gardens!) However, I am much older and a different person now, life is busy, this was slow-going, and I couldn't relax enough to plug on with this. It took me a while to finish it. YMMV...
P.S. I really miss the Hilary Knight illustrations from Dragon Magic in this--they added so much to the reading experience. There's so much worthy of illustration in this--not just the setting, but Ulbanu and Nidintulugal. Children's chapter books SO benefit from great illustrators. I was lucky to have devoured many dual treasures (text + illustrations) back in the day.
What was your favorite illustrated children's chapter book? Share in the comments if you feel to.