It's Queen Anne's England. The Hawkesmoors and Ravenspeares have been blood enemies for generations, fighting over land, wealth, and women. The most recent grievance involved Simon Hawkesmoor's father and Ariel Ravenspeare's mother; they were lovers, and they were discovered and killed by Ariel's now-deceased father and some others (I don't think it's ever clear who).
Ariel has been raised in a wolf's den by her three unscrupulous and cruel brothers. She's learned to hide her feelings and stay out of the way, and she's learned to be sneaky. Unbeknownst to her brothers she's quietly raising racehorses, and her stock is starting to yield fruit. Soon she'll have enough to leave her home and set up shop in another country where her brothers can't hurt her anymore. She's also a healer, and spends time with a mysterious mute woman and her blind daughter, also healers who live in a cottage some distance from the Ravenspeare keep.
Simon Hawkesmoor has returned from the War of Spanish Succession, scared and weary of fighting. He engineers a situation where the notoriously stingy queen comes up with an idea to end the longstanding feud between the families. Why not wed the Ravenspeare's unmarried sister to the earl of Hawkesmoor? The disputed lands will pass to both families through their shared children. If there are no children, the land will pass to the family of whichever spouse survives the other.
The Ravenspeare brothers agree reluctantly, then hatch their own plan. Yes, they'll marry their little sister to Hawkesmoor, but there'll be no consummation, and before the month-long wedding feast has ended, their sister will be a widow, thus giving them the Hawksmoor lands. They hasten home to inform their sister of her part to play in this plot.
Ariel is reluctant to be the bait in a murderous trap, and even more so as she starts to learn more about her husband. For his part, Hawksmoor arrives to the wedding feast convinced he'll never love the girl, but he will treat her well. It doesn't take long for Ariel to turn all his intentions on their head.
It's a good story with a little mystery mixed in towards the end. I liked the protags, liked the romance between them, kind of hated their first sexual encounter (one of those no-no-no-yes things) and despised the brothers. All in all a good bit of drama.