"Tress of the Emerald Sea" is a fantasy novel by Brandon Sanderson, presented as a story told by the character Hoid. The text includes a table of contents, acknowledgments of the Dragonsteel team and others involved in the book's production, and a postscript describing the book's origins and inspirations, including "The Princess Bride" and Sanderson's aether concepts. The novel is a Cosmere story containing pirates, spore seas, lunagrees, a dragon, and a sorceress. It follows Tress's journey to rescue Charlie from the Sorceress, as well as detailing Tress's growth and changing character. It also includes a detailed copyright page and a list of other works by Sanderson.