It's the story of a young girl - Fern - who wishes she was not female and had the freedom to do as she wished, as her brother and boys in her tribe seem to be able to do.
She has an affinity with animals and dreams of riding a beautiful wild horse - but there are expectations of her and she must comply with her family's wishes. Growing up in prehistoric times may not have been much different to now.
One day Fern finds a young horse trapped, and befriends and rescues her. Eventually she can ride the filly, but until she convinces the tribe a horse can be a friend and workmate, rather than food, they are wary.
Of the era that Wind Rider is set - some six thousand years ago - there is no written record. But by researching and working with experts in the ancient world, Williams has crafted a unique tale of how life might have been back then, and how horse and man may have first interacted.
Exactly when a human first sat upon a horse will never be known, but it might well have happened in a similar manner to Wind Rider.
It is aimed at a younger audience, but kids of all ages will enjoy Wind Rider. It's a breath of fresh air in a genre full of fat ponies and prize ribbons.
"Yet I had a belief that I could write and that each of us, no matter where we come from, has a unique story to tell. I also had a powerful stubborn streak that kept me going. We had the luxuries of childhood: a dog, woods and a lake in New Hampshire, an old row boat, butterfly nets, paints, and books. We were read to copiously: Wait Till the Moon is Full, the Burgess Books, Stuart Little, etc. I became addicted. Books provided a haven of drama and adventure in my cozy little life.
"We weren't completely normal! Sane parents would not have allowed me to raise an orphaned raccoon, but mine loved the ring-tailed wonder as much as I did, and shared my pride in his successful return to the wild. My kindergarten teacher worried about me, but I think a child who doesn't hold the door open for imaginary animal friends is strange (and rude). I will admit that I was shy. At times, I thought our dog, Spike, was the only one who understood me. I still have a letter that I wrote to him when I was eight. He didn't write back but I knew that he was on my side.
"I like to tell kids that their ideas are valid. As proof, I can show them the original version of The Kingfisher's Gift which started out as a seventh grade writing assignment. My husband, Fred, our daughters, Fern and Spring, and numerous pets, live in a stone house in the wilds of western New York, and collect everything from seashells to Indian relics and books."