The conversation between human and AI assistant.
Who and what were those four white walkers?
What are their weaknesses?
One of the known weaknesses of the White Walkers is dragonglass, also known as obsidian. It was discovered that dragonglass can kill both White Walkers and their wights. Another weakness is Valyrian steel, which is a rare type of steel found only in the world of Game of Thrones. It is believed that only a few families in Westeros still possess Valyrian steel weapons.