BYARS, Betsy - The Winged Colt of Casa Mia - (Hardcover in Wrapper)

Book and wrapper still in a very good condition even though it belonged to a library before.  >>>   Charles was a serious, bookish kid, whose mother had sent him to his uncle's ranch for the summer. Uncle Coot was tired and bitter, a former movie stuntman who had made hundred of spectacular leaps and falls -- until he accidentally killed his favorite horse. Charles wanted his uncle to be a hero like he was in the movies, but Uncle Coot wasn't playing that role anymore. The two just had nothing in common...until an amazing birth takes place. A colt that can fly -- and magically brings a man and a boy together.    (Goodreads)