Dark Shores by Danielle Jensen

In a world divided by meddlesome gods and treacherous oceans, only the Maarin possess the knowledge to cross the Endless Seas. But they have one mandate: East must never meet West. Teriana is the second mate of the Quincense and heir to the Maarin Triumvirate. Her people are born of the seas and the keepers of its secrets, but when her closest friend is forced into an unwanted betrothal, Teriana breaks her people’s mandate so her friend might escape—a choice with devastating consequences. Marcus is… Read more.