In the Shadow of Midnight (Black Wolf #2)

Niece to the powerful Marshal of England, Lady Ariel de Clare was as skilled with the broadsword as any knight--a fierce, headstrong beauty determined to disobey the King himself rather than marry by decree. No man would ever command her. And no man did--until she met the legendary warrior pledged to see her safely to Wales, the bastard son of a nobleman who challenged her untamed soul.