on Google Preferred Source Google News Link copied to clipboard By Aimee Hart Published Aug 9, 2026, 10:10 PM EDT House of the Dragon House of the Dragon's season 3 finale makes some... unexpected changes to the source material
Image: HBO/Theo Whiteman George R.R. Martin set fans of his fantasy epic alight when he took to his blog on September 4, 2024, to post about changes he disagreed with for HBO’s adaptation of his Targaryen history book, Fire & Blood — namely the adaptation’s handling of Helaena Targaryen and her son, Maelor. The post, titled Beware the Butterflies, was deleted shortly afterward, but not before fans had saved and dissected every word of it to analyze why the cracks between GRRM and House of the Dragon showrunner Ryan Condal had begun to show.
Based on the final episode of House of the Dragon season 3, the reason for GRRM’s fury over Condal’s adaptation changes is abundantly clear.
Warning: This article contains spoilers for House of the Dragon’s season 3 finale.
After spending most of season 3 trying to prove herself a woman of the people, Rhaenyra (Emma D’Arcy) has officially had enough. With Ormund Hightower (James Norton) besmirching her reputation from his captured seat at Tumbleton (and the discovery that Aegon and his dragon Sunfyre are still alive) Rhaenyra finally goes on the offensive — and everyone is in the line of fire. This includes her half-sister Helaena Targaryen (Phia Saban), who has been left alone after Rhaenyra forced her childhood friend-turned-frenemy, Alicent Hightower (Olivia Cooke), to go to Harrenhal to kill her own son, Aemond Targaryen (Ewan Mitchell).
Despite promising to look after Helaena, Rhaenyra becomes relentless and downright cruel after realizing she’s quickly losing her grip on King’s Landing and her people, while still mourning the loss of her son Jace. This comes to a head in the latest episode, when Baela Targaryen (Bethany Antonia) confronts Rhaenyra, accusing her of using her allies (particularly her dragonriders) like chess pieces on a board, not truly caring whether they live or die as long as they are useful to her.
Baela isn’t the only one who has words for Rhaenyra. Helaena, revealed earlier in the season to be with child, has stopped eating. When Rhaenyra tries to get her to eat again, Helaena rips into the Black Queen, saying that everything she wants — to be Queen, to rule, etc. — is ugly and worthless. She twists the knife further by saying that their father, Viserys, would not like what Rhaenyra is doing. Rhaenyra doesn’t take this too kindly, and when she sees that Helaena won’t eat, she forces food on her half-sister.
Image: HBO/Ollie Upton It’s not the first harsh act Rhaenyra has inflicted on Helaena this season (she has also been demanding that Helaena share her visions to see if she’s successful in The Dance of Dragons), but it’s certainly the most cruel and aptly conveys just how far Rhaenyra is willing to fall to win the war.
What worsens the situation is that this occurs soon after a scene in which Mysaria (Sonoya Mizuno) — who has been sent by Rhaenyra to Pentos but slips away amid the chaos of King’s Landing — warns Helaena not to trust Rhaenyra anymore, saying that she and her child will always be hostages to Rhaenyra. After the force-feeding scene, the last time we see Helaena is just before she jumps out the window, impaling herself on the battlement spikes below. Rhaenyra finds Helaena’s body after a servant informs her, and she closes…