The Magician's Horse

The Magician's Horse is a fairy tale published by Andrew Lang in The Grey Fairy Book in 1900. There was a king who had three sons. One day princes went out hunting in a large forest. The youngest prince had lost his way, and brothers had to return home without him. How will brave prince survive in a forest alone? Will he be able to find a way home? The Magician's Horse isn't just a spiking horse and it could help to him?