He's the enemy. Our union is forbidden. That's why I have to have him.
Liliwen has all she could wish for, yet her sheltered life as Princess under the Seas leaves her unfulfilled. She goes rogue and travels to the enemy's territory. When she sees him, she knows he's a rare specimen. A soldier with many a battle scar. She ought to flee… but the challenge is on.
Also check out some similar keyword tags authors have used: