No character is safe in House of the Dragon and the most recent episode actually foreshadowed the heartbreaking way Helaena is going to die. During the parade of Meleys’ severed head around Kings Landing the people start to rebel with Alicent and Helaena being forced to flee.

One fan spotted the clever foreshadowing on TikTok, where in the process of trying to protect her daughter Alicent accidentally starts pushing Helaena against some spikes, foreshadowing how she will later meet her end in House of the Dragon.

Via TikTok and HBO

This eerily mirrors how Heleana dies in the House of the Dragon book, where she sadly commits suicide and jumps to her death by falling on some spikes. Despite Alicent trying to protect her, she inadvertently drives her own daughter to her death because of her actions and desire for power.

Via HBO

In the book, Helaena becomes more and more depressed after the death of Jaehaerys and Aegon’s injury. She starts becoming worse as a dragonrider and eventually can no longer fly into battle, resulting in her becoming captured by Rhaenyra when she takes Kings Landing. She is imprisoned at Maegor’s Holdfast and eventually decides to jump from her window, dying from the impact of her throat being impaled by the spikes below.

Whilst the show might not follow the same plot as the book in regards to her death, given the current pattern and amount of foreshadowing taking place, it seems likely this was a deliberate choice.