Y ou may have been living under a rock (or at least not on TikTok) these past few years if you’ve not heard the words Fourth ...

Onyx Storm avoids repeating this unpopular storyline from Iron Flame, which the next book in The Empyrean Series must also avoid copying.

Rebecca Yarros’s ‘Onyx Storm is the fastest-selling adult novel in the past 20 years. The book, the third in a series, has sold 2.7 million copies in its first week and is topping every bestseller ...