Title: Sea of Shadows
Summary from Goodreads: They hear the spirits.They must obey.
In the Forest of the Dead, where the empire’s worst criminals are exiled, twin sisters Moria and Ashyn are charged with a dangerous task. For they are the Keeper and the Seeker, and each year they must quiet the enraged souls of the damned.
Only this year, the souls will not be quieted.
Ambushed and separated by an ancient evil, the sisters’ journey to find each other sends them far from the only home they’ve ever known. Accompanied by a stubborn imperial guard and a dashing condemned thief, the girls cross a once-empty wasteland, now filled with reawakened monsters of legend, as they travel to warn the emperor. But a terrible secret awaits them at court–one that will alter the balance of their world forever.
Description from Goodreads: One Legend Determines the Fate of Two Lives
In the faraway village of Tulan, sixteen-year-old Elara has spent her entire life as a servant, trying to track down her real name. The name she was given before being orphaned. Meanwhile, in the kingdom of Galandria, Princess Wilhamina does not know why her father, the king, makes her wear a mask. Or why she is forbidden to ever show her face.
When a new peace treaty between Galandria and Kyrenica is threatened, Elara and Wilha are brought face to face. Told in alternating perspectives, this intricate fairytale pulls both girls toward secrets that have been locked away behind castle doors, while the fate of two opposing kingdoms rests squarely on their untrained shoulders.