For March the Whispersync For Voice has free the audible version of Black Beauty:
In this classic story, set in Victorian England, a well-born colt tells his life story, from his early years in a pleasant meadow to his experiences as an elegant carriage horse and then an overworked cab horse. As he passes from one owner to another, some gentle, some cruel, Black Beauty tells a moving tale of an animal's perspective on the human world.
Get the book here
I read this as a child and I am curious to listen to it by such an excellent narrator!