I read your book today. I love it! Maybe a second book about more on the inventors side, at the end of the book maybe a little bit on how to make inventions. Also, I love lots of detail. So I think you should add more to the story with more more detail. Next I know some people that have a difficult time reading for a long period of time. So if you could make an easy read version of your book that would be awesome. Finally, I like getting to see Rosie Revere make more cool inventions.
I love your books! Please make more!