Backyard Horse Tales: Sox (2nd edition)

Sox finds himself in an alien world the night he is born. His mother is there with him and he quickly adapts. His Mom answers all his questions about his new environment. She explains things, and reassures him. Everything is a new experience for Sox.
Little Emma is his best friend.
Emma is living with her grandmother until her mother returns home from deployment Not used to living in a rural area she is very lonely and feels like a duck out of water. Little Sox brightens up her world and a life long bond is formed.