https://www.goodreads.com/book/show/423156.King_of_the_Wind
I vividly recall checking this book out of the library as a child - reading it late into the night and feeling like I was flying on Sham's back. Now grown up, I re-read it and the magic is still there.
Beautifully written as are all of Marguerite Henry's book, this one made history come to life.
Remember - she first published this book in the late 1940's. Timeless classic describes it well.
Highly recommend for children and adults.