Warning: SPOILERS ahead for Onyx Storm by Rebecca Yarros.Onyx Storm's ending promises we'll see more of him though, as it reveals the repercussions of his and Xaden's connection — and implies that Xaden will be ing him and the other venin in the next book.

With Theophanie seemingly out of the way, it's likely Berwyn will take on a much larger role in Onyx Storm's sequel. He may even be The Empyrean Series' Big Bad, particularly if one convincing theory about him proves true. Thus far, Fourth Wing's sequels have primarily focused on Xaden's interactions with the venin Sage (who reveals he's actually a general at the end of Iron Flame). However, Onyx Storm lays the groundwork for Berwyn and Violet to face each other in future books. And one popular theory makes that prospect so interesting.

Onyx Storm Theory Reveals That Berwyn Is The Venin Balance Of Violet's Second Signet

Berwyn Is Likely The Empyrean Series' Venin Dream-Walker

Onyx Storm by Rebecca Yarros on a smoky background with red veins
Custom Image by Kiersten Hall

Among Violet's second signet.

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5 Great Onyx Storm Theories About How Violet's Second Signet Will Be Used In The Next Empyrean Series Book

Onyx Storm finally reveals Violet’s second signet, and there are some great theories about how she can use it in the next Empyrean Series book.

Violet discovers her power from Andarna in Onyx Storm is dream-walking, an Inntinnsic ability that could make her significantly more dangerous. The Empyrean Series books have barely scratched the surface of what Violet can do with this signet, but they have shown us another character who can seemingly step into people's dreams. Berwyn haunts Xaden's nightmares throughout Iron Flame and Onyx Storm, and he manipulates Violet and Xaden through his dreams. Given this, it's possible Berwyn is the venin dream-walker, meaning Violet will have to face him one day.

Iron Flame Hints That Berwyn Is A Dream-Walker (& Shows How Powerful Violet Can Be)

Violet Might Be Able To Manipulate Other People & Outcomes Like The Venin Sage

Iron Flame offers evidence that Berwyn is another dream-walker, and if this theory proves true, it gives readers an idea of how powerful Violet can be. Violet believes the venin Sage is appearing in her dreams throughout Iron Flame, but Onyx Storm reveals otherwise. Berwyn is frequenting Xaden's nightmares, and Violet is only present because she's a dream-walker. Even so, it's clear the venin is targeting Xaden in Iron Flame, and he even uses Xaden's dreams to influence his choices later in the book. As Violet can't pull someone into another person's dreams, it seems this is all Berwyn's doing.

If Berwyn is any indication of what she's capable of, she'll be a force to be reckoned with when using Andarna's power.

One could say that Berwyn uses dream-walking to manipulate Xaden into turning venin, highlighting the strength and scope of such a power. Someone with this signet could likely plant ideas in another person's mind without them realizing it, and they could use it to push certain outcomes. Violet might be able to do all this after Onyx Storm, but she'll need to master her second signet before she reaches her full potential. If Berwyn is any indication of what she's capable of, she'll be a force to be reckoned with when she masters Andarna's power.

This Onyx Storm Theory Sets Up A Wild Showdown Between Violet & The Sage

They May End Up Facing One Another In Dreams

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Custom Image By Yailin Chacon

If Violet and Berwyn both turn out to be dream-walkers, Onyx Storm has set the stage for a truly bonkers confrontation between these characters in a future Fourth Wing sequel. If they're both capable of entering other people's dreams, it seems probable that their inevitable showdown will take place within the dream realm. This raises fascinating possibilities, as it could see them hopping from one character's mind to another's or even manipulating their environment as they fight each other.

There's no confirmed timeline for the next Empyrean Series book, but Rebecca Yarros is taking a break after Onyx Storm.

The Empyrean Series needs to reveal more about Violet's second signet before we know what she can do with it, but a one-on-one fight between her and the Sage is bound to be exciting. And if it does happen in the dream realm, it will raise the stakes significantly. It's unlikely that Violet's friends or dragons will be able to help her there, so it would truly be a battle of the minds between her and the Sage. Hopefully, Onyx Storm's sequel delivers on the potential of such a showdown, as it could be one of the series' best yet.

Onyx Storm Book Cover

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Genre
Fantasy
Publisher
Entangled: Red Tower Books
Publication Date
2025/01/01
ISBN#
1649374186
Author(s)
Rebecca Yarros