This is one of Brandon Sanderson's "secret projects" that he wrote during the lockdowns in 2020. I've been really excited to read it! Tress of the Emerald Sea is the story of Tress who lives on a planet made up of tiny islands and seas made from falling spores from the 12 moons. Tress lives on the Rock, a small island where they have to force people to stay. Tress loves her island, her cups (which she collects), and the duke's son: Charlie. Once the duke finds out about their relationship, he marches Charlie from the Rock and takes him to find a wife. Charlie swears to Tress that he'll resist, and sends a cup and letter at each stop. Then suddenly, the packages stop. It's announced that the duke is returning with his son and new daughter in law. When the ship arrives, the heartbroken Tress realizes that the duke's son is not Charlie. Indeed, the crew of the ship confirms that Charlie was sent to the evil Sorceress in the Midnight Sea and replaced wit