These are some of the most compelling theories about the Untitled Empyrean book, a new instalment and secret project Rebecca Yarros has been working on. These theories have been developed by both me and other dedicated readers, and they explore possible plot twists, character arcs, thematic directions, and larger story developments that may unfold next. Rather than focusing only on what is explicitly stated on the page, they draw from close reading, recurring patterns in the series, character relationships, and the broader direction of the narrative.

All contributions will be credited accordingly. If you have a theory about the upcoming Empyrean book, feel free to share it.

Please note that the discussion below contains spoilers for the earlier books in the series.

Let’s dive into some of the most thought-provoking theories surrounding the next installment of the Empyrean series.

Topics range from possible title clues to predictions about where the story may go next.

See all Untitled Empyrean Theories

• Everything we know about Untitled Empyrean (Not Book Four) by Rebecca Yarros