Meera is the eldest child and only daughter of Lord Howland Reed of Greywater Watch. Her sole sibling is her younger brother Jojen Reed.
Meera surprises Osha by placing a knife to her throat so that Osha will drop her wooden spear aimed on the back of Jojen's neck. Jojen tells that they have been searching for a long time so that they can offer their protection. Osha remarks that Jojen must be ashamed to have to rely on his sister for protection, but Meera dismisses her.
Osha and Meera continue to not get along, fighting over simple things like how best to skin a rabbit. Meera also cares for her brother while he is having seizure-like symptoms when he is having visions.
While in The Gift, the group seeks shelter from a rainstorm in an abandoned windmill when Meera spots a horse. She and the others witness the man being surrounded by wildlings and fear that a scared Hodor yelling will alert the Wildlings to their hiding place, but Bran uses his powers to enter Hodor's mind and make him sleep. Bran decides that he and Rickon should separate and that Osha and Shaggydog go with him. Before she leaves, Osha makes Meera and Jojen promise to keep Bran safe.
Meera arrives with the remaining members of the group at Nightfort, a long unused Night's Watch castle along the Wall. Bran recalls a lot of scary stories he had heard from Old Nan about Nightfort, but Meera expresses her love of scary stories so Bran retells the legend of the Rat Cook. Suddenly, a dark figure appears from a well, frightening the group. Meera pins the figure down, knife in hand, yet it is only Samwell Tarly with Gilly and her baby. After discovering who each other are, Samwell warns Bran and the others of the White Walkers, but Bran insists that although he would like to join Samwell at Castle Black, he and the others must continue on their quest. Samwell supplies them dragonglass, and noticing that Meera uses a bow, gives her extra for her arrows.
Meera interrupts Bran's warging, stating that he was gone for hours. Jojen warns Bran of the dangers of staying within the minds of others for too long. Meera supports her brother, insisting to Bran that he would forget his friends, his family, his home, and even himself.
Around their campfire at night, Meera and her companions hears the cries of a baby (Craster's last son left outside by Rast). Bran wargs into Summer to investigate, but notices Ghost in a cage and Summer falls into a trap. They discover the mutineers at Craster's Keep, but Meera insists they leave the area. Bran wants to free the trapped direwolves, but they are ambushed by the mutineers and taken to Karl. Karl threatens Meera and Jojen, which forces Bran to reveal his identity to them.
Later, Karl and other mutineers prepare to rape Meera in front of her companions, but they are interrupted by the arrival of Jon Snow and the Night's Watch. During the ensuing battle, Locke finds the four of them and takes Bran away, intending to kill him. Bran wargs into Hodor and kills Locke by snapping his neck. As the raid on Craster's Keep continues, Bran, Jojen, Meera, and Hodor escape.
As they are walking to the tree her brother is grabbed from beneath the snow and dragged by a Wight, but Meera comes to his aid before he is dragged beneath the snow. Meera successfully protects him from the Wights and pushes Jojen to the ground before being killed by one. As Meera takes his eyes off her brother as he lies in the snow while she fights off other Wights, the thought to be dead Wight next to him pulls a knife out and repeatedly stabs him. Leaf tells her that he is lost, and he tells her to leave him for dead, but before leaving slits his throat out of mercy. She gets inside the cave and follows Leaf with Bran and Hodor where they meet the three-eyed raven.
Meera remains in the Weirwood cave with Bran, Hodor, and the Three-eyed Raven. After Bran has a vision of his father as a child, he finds Meera sitting just outside the cave entrance. She confides in him that she is having trouble coping with their apparent inaction towards the coming war, and Bran reminds her that it's not safe anywhere outside. After he leaves, a child of the forest tells her that she needs to protect Bran at all costs.
While Meera is sleeping one night, Bran comes into contact with the Night King. When he wakes up and cries out, Meera awakens as well. The Three-eyed Raven informs them of their situation. She briefly speaks to Hodor before realizing how close the White Walkers are. Meera rushes to the entrance of the cave and sees the vast army of the dead approaching. On Leaf's orders, she dashes back into the cave, picks up a spear, and frantically tries to wake Bran up from his latest vision. Meera's latest words enter Bran's thoughts, and as the wights enter the cave, she encourages him to warg into Hodor. She kills several wights and successfully shatters one White Walker with her spear. She carries Bran out of the cave in a cart, begging both present and past Hodor to "hold the door". Although all the other inhabitants of the cave perish, Meera escapes the battle alive with Bran.
Oldest child of Howland Reed, lord of Greywater Watch who fought alongside Ned Stark during Robert's Rebellion, Meera is a skilled hunter. She was fiercely protective of her frail younger brother, Jojen, who was killed in a wight attack while the siblings and Bran traveled beyond the Wall. She helped Bran escape the Army of the Dead after they came for Bran.