#1 New York Times bestselling author of The Selection series Kiera Cass is back with her most epic novel yet - a sweeping enemies-to-lovers standalone romance.-Love has a sound. It sounds like a thousand heartbeats happening at the same time.-Annika has lived a life of comfort and luxury as the Princess of Kadier-but now, after the death of her mother, she-s weighted under the looming threat of a loveless marriage arranged by her cold father.Far outside the palace walls, on the outskirts of the land Annika-s family has long ruled over, Lennox is waiting for his moment. His people displaced, his father gone, Lennox knows that it-s up to him to lead his people into a battle to overthrow the Kadierian monarchy.After Annika and Lennox-s worlds collide, they can-t stop thinking of each other. Annika has waited her whole life to find out what love truly feels like-but could it be that she-s found love with someone she can never have?