Summary

The latest installment ofThe Empyrean Series,Onyx Storm,has many burning questions left from the previous books that it must contend with in its plot.Updates onOnyx Stormand its premise have been minimal, leaving the fate of Navarre open-ended until the book’s release. Though fans have crafted manytheories on the future ofThe Empyrean Series,the first two books have several open threads that the third one could and should follow.

The Empyrean Series’first two novels slowly crafted the storyline of Violet Sorrengail and her time at Basgiath, establishing and deconstructing the world’s lore. Each detail the characters found was pertinent to revealing what was truly going on in Navarre, culminating in the Battle of Basgiath duringIron Flame’sending. That said, many questions remain about the larger worldbuilding and plot thatOnyx Stormmust address, starting with the series' antagonist.

This image is a closeup of the Fourth Wing book cover.

How 1 Small Fourth Wing Detail Could Unlock Violet’s Second Signet In The Next Empyrean Series Book

The next book in The Empyrean Series could use one small detail from Fourth Wing to allow Violet’s second signet to truly and fully manifest.

10Is There A Cure For Being A Venin?

The Idea Of A Cure Was Mentioned In Iron Flame

Onyx Stormmust definitively answer if there is a cure for the venin in order to build up the final conflict ofThe Empyrean Series.The idea of a cure for the venin was mostly explored in the latter half ofIron Flame.Specifically, the idea was seen through the reveal ofJack Barlowe being veninas Nolon was attempting to heal him and failed. This failure led to Jack toppling the ward stone with Baide during the Battle of Basgiath.

Jack seemed confident that no cure existed at the end ofIron Flame.However, Jack could either be lying or simply not know, as he is a low-ranking venin. The possibility of a cure would clearly outline the rest of the conflict, as the protagonists would then gather what was needed to administer it in battle as well as to Xaden and Jack to protect Basgiath’s wards. If Jack is telling the truth, then the group would have to find another way to combat the venin and deal with Xaden’s transformation throughout the rest ofThe Empyrean Series.

Fourth Wing Wyvern

9Will Xaden Become A Villain?

Xaden Could Have a Villain Arc Now That He Is A Venin

Xaden’s status as a venin must be contended with inOnyx Stormas it could lead to him becoming a secondary antagonist withinThe Empyrean Series.Xaden becoming venin during book 2’s endingwas a massive cliffhanger, adding a new complication to his relationship with Violet and Basgiath as a whole.Onyx Stormneeds to address this, as his new status could cause Xaden to turn against his friends as the power overwhelms him. On the other hand, Xaden’s status also presents the plot ofOnyx Stormwith a great opportunity to subvert expectations.

Xaden, due to his established control, could fight the impulse to feed at first. However, if no cure exists, Xaden could end up switching sides as his lust for power overwhelms his morality. This would causeThe Empyrean Series’finale to become heartwrenching as Violet faces the man she loves on the battlefield. Conversely, Xaden could switch sides, but as a double agent, fooling everyone but Violet into thinking that he has turned against them. From there, Xaden could undermine the venin’s attacks internally and even discover their weaknesses if a cure is not an option.

Violet and Xaden training in Fourth Wing

8Will Violet & Xaden Remain Together?

Violet & Xaden’s Relationship Could Become Unstable Again

The relationship between Violet and Xaden now that Xaden has become venin should be a major part ofOnyx Storm’sstory, as their relationship is the backbone ofThe Empyrean Series.Onyx Stormcould continueViolet and Xaden’s dynamic fromIron Flame, with Xaden pushing Violet away due to his new status. Other characters may also attempt to keep them apart, as Xaden being both a marked one and now a venin would give Basgiath’s leadership the excuse they need to get rid of him.

Violet could be forced to end things with him due to one or both of these circumstances. However, Violet’s stubbornness in both books could also subvert this expectation, as she decides to trust her heart like she did during the early days of their relationship. With their stronger bond, the two could allowOnyx Stormsome moments of levity and sweetness. As a result, other factors can become the focus of the book’s plot, subverting expectations while still maintaining the largest part ofThe Empyrean Seriesthat drew audiences in the first place.

Fanart of Violet and Xaden Fourth Wing

7Why Was Violet’s Father Researching Feathertails/The Venin?

Violet’s Father’s Research Should Play A Large Role In Onyx Storm

The secrets behind Violet’s father’s research should come up inOnyx Storm,as it was mentioned in both books and could inform audiences about the worldbuilding inThe Empyrean Series.Many theories have surrounded Violet’s father’s death, especially considering how often his research has come up.Fourth Winghinted at his foreknowledge of the venin through Violet’s book and Varrish’s comment inIron Flameconfirmed that he was looking into feathertails. Both instances could result in a major discovery inOnyx Storm,adding to the series' lore.

If Violet’s father was looking into the venin, Violet could find the answer to how to stop them in his notes, giving audiences further insight into the antagonist and their origins. The discovery could also lead to a shocking revelation ifViolet’s father became venin, which would add to both his and Lilith Sorrengail’s character posthumously. Violet could also find his work on feathertails, giving audiences more information as the group attempts to hide it from Basgiath’s leadership, who could abuse that knowledge.

Fanart of Violet Tairn and Andarna flying in Fourth Wing

6Will Aaric Be Found Out By His Father?

Aaric Greycastle, aka Prince Cam, Was Introduced In Iron Flame

hile his role inIron Flamewas minimal, Aaric’s secret status as a royal and the consequences surrounding it should be featured inOnyx Storm.Little is known about the royal family inThe Empyrean Series,as the King only made a brief appearance inFourth Wing.The introduction of Aaric and his limited use inIron FlamegivesOnyx Stormthe opportunity to not only explore Aaric’s character, but the true nature of his family as it could impact the future of Navarre.

The reveal of Aaric’s secret is an unused plot point from the previous books, so having it be exposed could give the story tension outside the main cast. Aaric’s father, King Tauriel, could try to force him to resign as a rider, something Aaric would refuse considering his desire to help his people. As his brief appearance established his ego, King Tauriel could then withdraw his support, forcing the group to face the venin alone. Aaric’s courage as well as their victory could then allow him to take over as king, giving Navarre a brighter future.

The cover of Iron Flame by Rebecca Yarros and a fiery background with a dragon

5How Does Sawyer Cope With What Happened At The End Of Iron Flame?

Sawyer’s pain and struggles after the Battle of Basgiath should be touched on inOnyx Stormas it would strengthen the character dynamics ofThe Empyrean Series.Sawyer’s fate duringIron Flame’sendingis still partly ambiguous. Beyond his initial survival, the story does not go into his mental state regarding the loss of his leg or what could be done to assist him.Onyx Stormshould take the time to dive deeper into Sawyer’s mentality as it would strengthen his character and The Iron Squad as a whole.

Through exploring his journey,Onyx Stormcould expand on Sawyeras a character since he has been the least developed. Sawyer’s role has largely been confined to serving other characters, such as Ridoc. Exploring his mentality as he adjusts to either living with one leg or a prosthetic could showcase more of the fortitude and determination audiences have seen from him inThe Empyrean Series.Sawyer’s journey could also bring The Iron Squad closer together as they help him cope, strengthening their bond and giving audiences more sweet moments as the plot thickens.

Custom image of the special edition Fourth Wing book with a silhouetted dragon and fire in the background.

4Where Did Mira Go At The End of Iron Flame?

Mira Vanished After The Death Of Her Mother In Iron Flame

Mira’s disappearance at the end ofIron Flameshould be explored inOnyx Stormas it would be an opportunity for the Sorrengail siblings to bond further. The death of their mother is one of the most devastating blows the siblings have taken inThe Empyrean Series. Mira especially seemed impacted as their relationship was rocky due to many factors. As a result, Mira fleeing Basgiath at the end ofIron Flamewas understandable, but also raises the question of where she is now.

Onyx Stormcould have Brennan and Violet search for her, allowing them to discuss their own relationship and give audiences further backstory on the Sorrengail family. If Mira is found quickly, the three could have a moment to grieve together as she comes to terms with that loss. That scene could allowOnyx Stormto show more of her characteras she allows her confident persona to drop. Conversely, Mira’s absence could spark the beginning of the main plot as the group hunts for her, fearing the worst as they are forced away from Basgiath’s wards.

Fourth wing Mira and Teine

3Will Aretia Be Invaded?

Aretia’s Wards Could Fall In Onyx Storm

The fate of Aretia should be a major point explored inOnyx Stormas revitalizing its wards was a main plot ofIron Flame. Violet’s quest to reignite the wards in Aretia was one of her main motivations for the second book inThe Empyrean Series.It led to the group’s ill-fated heist on the Archives and Violet’s imprisonment by Varrish, causing the resistance to flee Basgiath. Despite this, Violet’s efforts were sadly in vain, as Aretia’s wards were weak and would only get weaker.

Since Aretia’s wards cannot be remade as Andarna reforged Basgiath’s, the possibility of the venin invading could be a major conflict ofOnyx Storm.Andarna being the last of the Seventh Breed puts Aretia in danger, as all seven breeds of dragon must lend their fire to ignite the ward stone properly. The venin could sense the weakening wards and invade Aretia, giving them access to the new nesting grounds. This could then give the venin a huge power boost and destroy the morale of the protagonists as they regroup behind Basgiath’s wards.

fourth wing map of navarre as seen in book-1

2Could Naolin Return As a Venin?

Many Onyx Storm Theories Suggest Naolin Could Return

Naolin could return as a venin inOnyx Storm, causing further issues as his knowledge could be giving the venin a concerning advantage.Naolin’s return is a popularOnyx Stormtheoryas details surrounding his death are kept vague inThe Empyrean Series.Naolin’s power as a siphon could have caused him to become a venin to save Brennan’s life, as he could have burnt out and reached for the power in the earth. Not only would his return spark new conflicts for the characters, but would also explain some of the venin’s strategies seen in previous books.

InIron Flame,Violet and Mira find runes etched into the fallen wyvern, implying the venin can still utilize that magic despite being cut off from their dragons or griffins. Brennan has a rune-like scar on his hand, implying that Naolin may have used runic magic as well and, after turning, taught it to the venin. Naolin’s return inOnyx Stormwould confirm this and give the protagonists an advantage, as it has been established that rune magic can also be neutralized.

Naolin imbuing Brennan with energy in The Empyrean Series

1What Happened To The Seventh Breed of Dragon?

The Seventh Breed Could Have Defeated The Venin At A Cost

Onyx Stormmust go into Andarna and the seventh breed of dragon as it will reveal more about the world ofThe Empyrean Seriesand how the protagonists could win against the venin. Andarna revealed to Violet inIron Flamehow she was the last member of the Seventh Breed and that she had waited over 600 years to hatch for Violet. This confession not only implies that Violet may have a larger destiny, but how Andarna could be thestrongest dragon inThe Empyrean Seriesbooks.

The Empyrean Seriesestablishes early on that the venin had not attacked Navarre for 600 years. While it is stated that this is due to the wards nullifying their magic,Onyx Stormcould reveal that the Seventh Breed were instrumental in weakening the venin, though at a great cost. Andarna could then begin to showcase more of their power as she grows, giving her strength beyond even Codagh. Her growing power could, by the end ofOnyx Storm,be key to taking out the venin once and for all in upcoming books.