Summary
The real reason behind Violet’s father’s death is brought into a new light in one geniusFourth Wingtheory, adding both a fascinating and elaborate note to the narrative. Violet’s father is simultaneously one of the least elaborated on characters in the series and one of the most vital. The mystery around his research and death has not only fueled many fan theories forFourth WingandThe Empyrean Seriesas a whole, but also subtly drove the plot of the first two books.
Both his letter to Violet and the book of folktales she loves inFourth Wingforeshadow the reveal that the venin are more than a story. Though Violet’s focus inIron Flameis on ward magic over her father’s odd warning, fans have speculated on his cryptic messages as moreOnyx Stormupdatesarrive. One particularReddittheory posits that his death was no mere heart attack, but that he had a hand in it himself.

Did Violet Sorrengail’s Dad Turn Venin?! This Fourth Wing Theory Is Dark AF (But Genius)
One of the dark but intriguing theories fans of Fourth Wing have crafted is that Violet’s father may have turned venin, leading to his death.
This Genius Fourth Wing Theory Claims Violet’s Father Poisoned Himself
User JuliaJoy Posted The Theory To Reddit’s Official Fourth Wing Thread
According to this Reddit theory,Violet’s father poisoned himself before the events ofFourth Wing,leaving the hints about what he was researching to Violet for safety.Violet’s condition inFourth Wingmeant that she spent quite a bit of time in the Archives with her father, learning the ways of the Scribe Quadrant. Due to this, Violet’s father was not only able to teach her about Navarre’s history, but also trusted her enough to leave his work with her. Work that, according to this theory, he died to protect.
Whichever it may be, both led Violet’s father to poison himself before the events ofFourth Wing, setting the larger plot in motion.

Violet’s father, this theory proposes, poisoned himself in a way that it would appear he died from a heart attack.He did this to protect the secret of a discoveryhe knew the leadership of Navarre would want to extract from him. Whether that want was to keep it hidden or obtain it depends on what that secret was, as two predominant theories abound. Whichever it may be, both led Violet’s father to poison himself before the events ofFourth Wing,setting the larger plot in motion.
Why Violet’s Father Would Plan His Own Death Before The Events Of Fourth Wing
Violet’s Father Could Have Discovered Something About The Venin Or Andarna
Violet’s father could have discovered the venin coverup or something about Andarna that led him to plan his own death beforeFourth Wingbegan. On one hand,Violet’s father seems to have discovered the coverup Navarre was perpetuating about the venin.He may have attempted to look deeper into them, allowing him to learn about their weaknesses. However, this may have also caused Basigath’s leadership to suspect his activities. To protect his research and family from scrutiny and possible punishment, he planned his death, leaving Violet the book so that she could continue his work.
Conversely, the discovery that led to his death could have been regarding Andarna. Varrish mentions inIron Flamethat Violet’s father was looking into feathertails.Perhaps he learned about the Empyrean’s secret regarding feathertails and feared that Basigath’s leadership would try to capture themto force more dragons to bond. He may have also discovered that Andarna could grow to be thestrongest dragon inFourth Wingdue to her status as the last of the seventh breed. Both of these options could lead to this poisoning theory, as well as other clues in the series.

All The Empyrean Series Clues That Back Up This Poisoning Theory
Both Fourth Wing And Iron Flame Contain Clues That Corroborate This Theory
Mira and Violet’s conversation inIron Flameand the tone of the letter inFourth Wingcould back up this theory. Mira and Violet, during the scene in Samara where they are practicing their knife throwing, discuss their father.Mira specifically mentions how she never truly paid attention to her father’s lessons on poisons, which Violet excels at. These lessons may have been a cover for their father’s own experiments with poisons, specifically ones that would make his death appear natural. Not only that, but those lessons could have served as an additional clue to Violet along with the letter.
The opening sentence and his belief that she will make the “right choice” implies that Violet’s father will not be there to see her arrival in Basigath.

The letter showcases how Violet’s father knew he was going to die and figured that Violet would take over his workonce she became a scribe. The opening sentence and his belief that she will make the “right choice” implies that Violet’s father will not be there to see her arrival in Basigath. He also mentions how he assumed she would be in the Scribe Quadrant. Both the clues and information fromotherFourth Wingcharacterscontinue to shroud Violet’s father in mystery, allowing even moreFourth Wingtheories to bloom regarding the Sorrengail patriarch.