The White Worm’s True Colors Revealed — Does Mysaria Actually Betray Rhaenyra in ‘House of the Dragon’

The question of where Mysaria’s loyalties truly lie has become one of the most compelling threads running through ‘House of the Dragon‘. The enigmatic spymaster known as the White Worm operates in the shadows of Westeros’ civil war, making her allegiances notoriously difficult to read. For fans who have watched her arc closely, the word “betrayal” feels like it could describe her past, her present, or maybe her inevitable future.

Mysaria’s loyalty to Rhaenyra remains unclear, with her potential betrayal drawing direct comparisons to what Varys did in ‘Game of Thrones’. The parallels are hard to ignore, and understanding where the show is heading with her character requires a close look at both her actions on screen and what the source material suggests about what happens next.

Mysaria’s History of Selling Secrets

Before she became Rhaenyra’s closest confidante, Mysaria was doing business with the other side. Daemon interrogated Mysaria at Dragonstone, accusing her of aiding Otto Hightower and betraying Rhaenyra. Mysaria admitted to selling information but firmly denied supporting Otto’s broader plans, insisting that her dealings with him were purely a business arrangement.

Mysaria worked her way up in the capital, going from a sex worker to a brothel proprietor to a sly information broker who traded in official secrets and critical information. Her network was formidable, and the fact that she sold intelligence to whoever could pay was less a sign of disloyalty and more a survival strategy forged over years of brutal self-reliance.

When Rhaenyra first speaks with Mysaria, she does not trust her but suggests she may be an ally to her cause. Mysaria then tells Rhaenyra a piece of her life story in an attempt to earn her trust and prove she has no allegiance to the Hightowers or any reason to betray Rhaenyra for their benefit.

Rhaenyra, recognizing Mysaria from their previous meeting, is reluctant, acknowledging that Mysaria’s spy network could be a threat to her campaign. Mysaria insists she has no interest in betraying Rhaenyra, her experiences with Daemon and Otto having destroyed her wish to be a person of significance.

The White Worm Loyalty Test She Already Passed

Whatever doubts lingered about Mysaria’s true motivations, her actions in season 2 gave Rhaenyra concrete reason to believe in her. Mysaria later assisted Rhaenyra by alerting her to an assassination attempt by Arryk Cargyll. This action earned her some trust from Rhaenyra, who eventually granted her freedom.

Rhaenyra says that releasing Mysaria would, at best, be a foolish loss of an asset and, at worst, lead to fatal betrayal. Still, her eyes suggest she is looking at perhaps the only person who understands her on a deeper level. That moment of vulnerability from Rhaenyra says a great deal about how isolated she has become as queen.

Despite trying to flee King’s Landing after enemy forces burned her house to the ground, Mysaria caught a plot to kill Rhaenyra and saved the queen’s life, ultimately earning her favor. By the end of season 2, Mysaria and Rhaenyra had become lovers. The intimacy between the two adds another layer to the betrayal question, because the emotional stakes are now considerably higher than mere politics.

How the Spy Network Shapes the War

Mysaria is not simply a romantic interest or a reformed double agent. Her value to the Blacks lies in the extraordinary reach of her intelligence operation. Mysaria’s agency comprised a network of spies spread in the nooks and crannies of King’s Landing and within the Red Keep, and she worked under the alias of the White Worm, trading in the secrets of the Keep.

Following the First Battle of Tumbleton, Mysaria informed Rhaenyra that Daemon had been sleeping with Nettles, his fellow dragonrider, at Maidenpool. Whether that information was delivered out of loyalty, grief, or cold strategic calculation remains one of the show’s most intriguing ambiguities.

In the show, Mysaria encouraged Rhaenyra to look for dragonriders among Targaryen bastards, a plan that in the source material actually originated with Jacaerys himself. The show’s decision to give Mysaria a greater role in shaping war strategy signals that the writers are positioning her as far more than a background figure in the Dance of the Dragons.

What the Books Say About Her Ultimate Fate

The source material does not let Mysaria off easily, and it does not give her a quiet exit either. Mysaria’s story looks to be taking a turn from her path in ‘Fire and Blood’, so it is hard to say where exactly she is headed. In the book, she is still Daemon’s lover around this time, with Rhaenyra permitting this and allowing Mysaria to serve as her mistress of whisperers regardless.

Rhaenyra ultimately loses her grip on the Iron Throne and is run out of King’s Landing. Though Mysaria is there to comfort her queen as her reign ends, Rhaenyra flees the Westerosi capital in fear. Mysaria, however, stays. That choice to remain in a city collapsing around her suggests that, right to the end, Mysaria is operating on her own terms.

When Rhaenyra ultimately fled the capital, Mysaria remained at the Red Keep among other members of the court. Ser Garth the Harelip surrendered the Red Keep to Ser Perkin the Flea and his gutter knights, and Mysaria attempted to flee but was taken. Perkin informed Mysaria that if she could travel naked through the city to the Gate of the Gods while being whipped, she would be allowed to live. Mysaria only made it halfway, dying on the city’s cobblestones.

Does She Betray Rhaenyra Or Just Outlast Her

The complicated reality of Mysaria’s character is that she never fits neatly into the role of traitor or loyal servant. Mysaria is loyal to no one but herself, and exchanging information with the Hightowers certainly did not mean she was loyal to the Greens, as Larys Strong would later have her house set on fire, demonstrating exactly how little the Green faction valued her.

There is no other person in Westeros Mysaria would be loyal to and betray Rhaenyra for. She is clearly appealing to Rhaenyra’s good side right now in a way that could be perceived as manipulative, but the dynamic is far more nuanced than a straightforward con. The show seems deliberately invested in exploring a woman who has been used as a pawn her entire life and is now, for perhaps the first time, choosing something real.

Through a few words, Rhaenyra seems to realize that Mysaria is one of the few people who understands Daemon’s nature in the way she does. Before her is a woman who has fallen under Daemon’s deceit and manipulation for his gain and lived to tell of it in a way few have.

That shared wound is the foundation of something far more complicated than a simple alliance, and if the show follows the books even loosely, the tragedy is not that Mysaria betrays Rhaenyra but that Rhaenyra flees while Mysaria stays to face the consequences alone. If you have been watching Mysaria’s arc unfold across every calculated whisper and unexpected act of protection, what do you think she is actually playing at, and do you believe she will still be standing by Rhaenyra when everything finally falls apart?