Adelina's life and training have evolved around one main mission: to assassinate the crown prince. For years, the Resistance has trained her to be the ultimate weapon. The ball celebrating the prince's birthday is the perfect opportunity and cover to complete the task she's prepared for.

Prince Niccolò was never meant to inherit the throne. Upon discovering the contract of his betrothal, he becomes desperate for answers and a way to escape the castle he has called home.

When Lina's attraction to the prince derails her assignment, she realizes the royal target may not be the enemy she believed him to be.