A princess with an adventurer's spirit. A pirate with a king's obligations. Marina has known for a long time that she doesn't want the life her parents want for her, but when they announce her betrothal to the steady but dull captain of the guard, she reluctantly accepts her duty. That is until an enemy siren is captured and presented to her father, and Marina can't think of anything but amber eyes and wings. In a twist of fate, Marina finds herself the prisoner of an enemy king in a plot to end a centuries-long war between their peoples that can only end in either death or heartbreak. Ballad of Sea and Sky is the first book in The Whispering Sea Duet, an enemies to lovers romantasy adventure featuring sirens, selkies, and spicy romance.