Once every thousand years, two souls are entwined, uniting the powers of the kingdoms.

But what if your soul is connected to your enemy?

King Marc's father betrayed Arianna's family and stole her kingdom, and all she wants is revenge. Disguised as a lowly tanner, Arianna works with the rebels, and when King Marc asks her to marry him, she agrees only so she can steal his throne. How long can she hide her identity and mission from a husband who unknowingly shares her powers and is determined to know her past?

Dark forces push the kingdoms back toward war, and Marc submits to the marriage law only to preserve the peace. But when he marries a minute past midnight, he is forced to abdicate, leaving him a mere commoner, and as he comes to know his wife, he realizes that her secrets could destroy them all.