Tuesdays at the Castle by Jessica Day George
This was selected by my 9 year old. It is also a EBOB (Elementary Battle of the Books) selection in NC for 2013/2014.
Dragonbreath (Book 1) by Ursula Vernon
My pick for April. I prefer dinosaurs but dragons are a close second (as are iguanas).
Goosebumps: Deep Trouble by R.L. Stine
The 5 year old picked this book. It will takes us a month to read it, but I love his enthusiasm for chapter books.