The Prince of Winterfell that after reaching the farm, they had doubled back to Winterfell itself to evade Theon's patrols. Luwin deduces that Theon's men murdered a farming family and burned their sons' bodies in the Stark boys' stead. He asks Osha to keep it from Bran since he would blame himself, but Bran overhears their conversation. The episode was written by producers David Benioff and D. B. Weiss, based on the original work of George R. R. Martin. "The Prince of Winterfell" adapts the content of chapters Arya IX, Tyrion XII, Theon V (48, 55 and 57) from "A Clash of Kings", and
The Door (Game of Thrones) costumes, with variations we used to make a digital army that extends up onto the hills." Bauer also noted that VFX were used to create the weather conditions in the scene, noting "It's wind, mist, fog and heavy atmosphere that you'd get in a marine layer. The dramatic value is to say something's wrong; it's a mystery what they are facing. The temperature drops, and our characters can see their breath. The weather obscures their vision." Spain-based El Ranchito, one of several special effects companies used by "Game of Thrones", was responsible for the White Walker army shots. Pilou Asbæk,