Claire Tremaine, the widowed Marchioness of Derebourne, wears leather breeches, trains horses, and helps the damaged ones find their lost spirit. Her husband has just passed away, leaving her with no place to live.

Chastain Warren, the Earl of Kensington, Chase to his friends, isn't pleased when he learns he's inherited the title of Marquess of Derebourne. Having recently lost his beloved wife and child, the last thing he wants is to be caretaker of Hillcrest Abbey. Nor does he want to be attracted to Derebourne's widow, but he is. This woman who wears breeches isn't anything like the ladies he's waltzed with in the ballrooms of London.

It doesn't take Claire long to realize she wants this man, and when he resists, she comes up with a plan she calls The Training of a Marquess and works her horse-whispering magic on Chase.