"Exit Party," by Emily St. John Mandel.

The literary work titled Exit Party is authored by Emily St. John Mandel. This specific publication is handled by the Knopf Doubleday Publishing Group in coordination with TNS. The sources consistently identify the author and the publishing entities involved in the release of the text. No further plot details or critical reviews are provided in the source material, focusing exclusively on the attribution of the authorship and the official publishing house responsible for the book.