This story begins on the wide open prairie, next to the Sangre de Christo Mountains in northeastern New Mexico, home of many diverse animals. It's the tale is of an unusual friendship between a pronghorn antelope and a beautiful mare.

Tawny the pronghorn lived a solitary life, being away from his herd for a long time. Being very adventurous he was always exploring and one day after spying another animal decided to get a closer look. The other animal, a horse in her own pasture, was Brown Beauty; Brownie to her friends. They both became more curious about the other and began by asking each other's names and then talking about their lives. When they weren't grazing there was so much to talk about. The story takes a dramatic and dangerous turn when Tawny decides to go to the other side of the fence and gets tangled in the wire. Brownie tried to encourage him to get free but it was no use. She then thought to run back to the ranch to get her owner Roy to help. The rancher saves Tawny's life by cutting away the wire.

Roy realized Brownie had been very lonely and was grateful she had found a good friend. He even built them a shelter so they would be out of the winter cold and snow. And he kept it stocked with good feed after the grass had lost its nourishment. So began a long and enduring friendship between two very different animals.