'Threshing Day' answers questions 'Fourth Wing' fans have about Rebecca Yarros' series. Here's what you might've missed.

Rebecca Yarros' "Threshing Day" contains Easter eggs and clues about the "Empyrean" series, as well as a new perspective on "Fourth Wing."

MediaNews muestra el titular y el resumen publicados por el medio. El artículo completo se lee en el sitio del editor. (www.businessinsider.com)