'Onyx Storm' left readers with lots of unanswered questions. Here's everything Rebecca Yarros has said about the 4th 'Empyrean' book so far.
Rebecca Yarros released "Onyx Storm" on January 21, but readers are already looking forward to the next book in the "Fourth ...
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10 Theories & Predictions For The Next Fourth Wing Book After Reading Onyx Storm
After Onyx Storm's cliffhanger ending, readers have begun to put together many convincing theories as to what will happen next in the Empyrean Series.