A dangerous romance, a stolen sister, and the mythical treasure that could change everything. The first in the Uncommon World series of standalone novels, Waters of Salt and Sin combines the epic setting of Game of Thrones with the humor and romance of Pirates of the Caribbean--perfect for Sabaa Tahir and Sarah J. Maas fans!To save her sister from starvation and hold on to her relationship with Calev--the high-caste friend she secretly loves--Kinneret sets out for a lost island of silver. But when a madman enslaves her sister, Kinneret must make a deal with the local ruler: Help the leader find the island and secure the ruler's place in history. In return, the leader's fighting sailors will help rescue her sister.Using Salt Magic to navigate cursed waters, Kinneret and Calev struggle to hide their taboo, caste-breaking feelings for one another, knowing if the ruler witnesses the attraction, she'll cancel the agreement. But when Calev makes a terrible mistake, Kinneret must choose between the life of her only remaining family member and saving the boy she loves from a traitor's death.