Summer

Summer was one of six direwolf pups found by the children of House Stark. Summer is adopted and raised by Bran Stark. Summer accompanies Bran in his travels north of The Wall. During his journey, Bran discovers and hones his abilities as a warg, often warging into Summer whom he uses for protection and scouting. Summer is killed in defense of Bran when wights and white walkers attack the cave of the Three-Eyed Raven.