Kepler's Dream by Juliet Bell

It's summer vacation and your mom is very sick and in the hospital and you are being sent to live with a grandmother you've never met. Your dad refers to her as the Old Dragon. What kind of a summer will that be?
This book is narrated by 11 year old Ella and is filled with peacocks, stars and lots of books and horseback riding and a real mystery that Ella and her new friend try figuring out.
I enjoyed reading this story of learning about family relationships, new places, meanagers (mean teenagers) and the worry of someone you love being sick.