The Red Wedding
When they arrive at House Frey, Arya displays apprehension. The Hound jokes that she fears something awful may happen to destroy the reunion with her family. Arya lashes back, revealing that she noticed his fear of Beric's flaming sword during their fight and that she knows what the Hound's brother did to him as a child. Clegane then taunts Arya about her father's death. She counters, saying, "Someday I'm going to put a sword through your eye and out the back of your skull."
Amid the harsh banter, they decide that it is perhaps best to approach the castle with caution, so they disguise themselves as the hog farmer and his daughter. The Hound then tells the guard they have salted pork for the feast, but the man replies the wedding is over and orders them to leave. Arya then breaks from Clegane's side and hides near a group of Stark banner men. Moments later, a group of soldiers exits the castle and murders the Stark forces. The move causes Robb's direwolf, Grey Wind, to howl, and a second set of forces murder the animal before Arya can intervene. When she tries to enter the castle, the Hound knocks her unconscious and carries her away in a move that saves her life, for he understands any attempt to help would be suicide.