The Boy Who Plaited Manes — Nancy Springer

When a young man mysteriously shows up in the stables of Lord Robley and demonstrates an amazing ability to braid horse manes and tails, the Lord and Lady are quite taken with his abilities and have him stay on. Sure, he doesn't speak a single word and there's truly something odd about him, but his talents at braiding are second to none. When the Lady finds herself in need of the man's skills for her own head of hair, the situation is looked upon as a bit scandalous, but nobody is prepared for the outcome that befalls them as a result. A short story.