The House of the Dragon Season 3 finale just changed everything. The show’s final episode delivered shocking deaths, brutal betrayals, and a haunting prophecy that sets up a devastating final season. Why did Helaena kill herself in House of the Dragon Season 3? His dragon Tessarion appeared to fly away from the devastation before Silverwing’s fire consumed the town. The fourth and final season of House of the Dragon currently targets a 2028 release.