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  ===Season 4===
  The Night King's first appearance is through a vision Bran Stark has with a Weirwood Heart tree. He experiences a flood of images from the past, present, and future, many of which he was not physically present for. He does not comprehend what all of these images are but, in retrospect, one of them is an image of the Night King picking up the last of Craster's sons off an ice altar.
  After Rast leaves Craster's final son in the Haunted Forest, a White Walker retrieves the child. The Walker travels to the White Walkers' fortress in the Lands of Always Winter and lays the child on an altar made of ice. The Night King approaches and places his finger on the boy, transforming him into a White Walker.