Joanna, the youngest of King Henry's daughters, is on her way to marry William II, king of Sicily. The journey will be long and dangerous, so Henry sends the only doctor he trusts—Adelia Aquilar, who is just as gifted with the living as she is with the dead. Usually, Adelia would be eager to visit her homeland, but Henry insists she leave her daughter in England as insurance she'll return. Adelia takes out her bitterness on Rowley, her former lover and Henry's most loyal man. Rowley is along for protection because a princess travelling with a fortune in jewels and gold is a tempting target, especially when among the treasures is the great sword Excalibur. Henry has decided to give it to his future son-in-law and greatest ally—to keep it from his ambitious sons. But the scheming of princes is nothing compared to a madman who seeks revenge because he blames Adelia for his lover's death...