horse racing -- fiction
“Alec heard a whistle—shrill, loud, clear, unlike anything he had ever heard before. He saw a mighty black horse rear on its hind legs, its forelegs striking out into the air. A white scarf was tied across its eyes. The crowd broke and ran.”
Walter Farley first imagined the Black Stallion, a wild creature of blazing speed and mysterious origins, when he was a teenager and high school track star in 1930s. He kept working on the story, sometimes turning parts of it into class assignments at college. After graduation, he began writing for a New York advertising agency, but he still kept working on his horse stories.