The black stallion's ghost - Walter Farley

While riding the Black in the Everglades one day, Alec meets a man astride a ghostly gray mare. Alec's fascination with the man turns to fear as he realizes the man is dangerously close to insanity. Soon Alec and the Black are caught up in a deadly chase through the depths of the Everglades, where a misstep could be fatal.

Walter Farley's first book, The Black Stallion, was an instant hit when it appeared in 1941. Mr. Farley went on to write thirty-three other enormously popular books about the Black Stallion and other horses which were published in more than twenty countries. He died in 1989, shortly before the publication of his last novel, The Young Black Stallion, written with his son Steven.