When Theon Greyjoy is being tortured by Ramsay Snow, Ramsay forces Theon to play a guessing game of their location. Theon guesses Last Hearth, but is ultimately incorrect and after another wrong guess, Ramsay flays Theon's little finger.
Bran Stark decides that he must go north of the Wall with Hodor, Meera, and Jojen Reed and realizes that his younger brother Rickon Stark cannot go with him. To keep Rickon safe, he instructs him to leave with Osha and Shaggydog and attempt to reach the relative safety of Last Hearth.
With the deaths of Greatjon Umber and his son, Last Hearth passes to Ned Umber, Greatjon's grandson. Though Sansa Stark advocates stripping House Umber of their lands and titles due to Smalljon's treachery by delivering Rickon and Osha to the Boltons after his father's passing, Jon Snow refuses to punish Ned for his father's actions, and forgives House Umber when Ned swears fealty to House Stark, allowing the Umbers to keep Last Hearth.
As the furthest northern settlement in the North, Last Hearth will (as Jon Snow remarked) likely be the first obstacle in the path of the army of the dead, having penetrated the Wall.
In the books
In the A Song of Ice and Fire novels, the Last Hearth is the seat of House Umber.
|Seat:||Last Hearth||Lands:||The North|
|Title(s):||Lord of Last Hearth|
|Ancestors:||Daragh Umber · Morag Umber · Hothor Umber · Amarylis Umber · Harkon Umber · Mycah Umber · Lucan Umber · Gareth Umber · Joseth Umber · Regan Umber · Corin Umber · Brandon Umber · Kear Umber · Finn Umber · Emilia Umber · Morgana Umber · Maynard Umber · Cedric Umber|
|Deceased members:||Greatjon Umber · Smalljon Umber|
Bear Island · Last Hearth · Karhold · The Dreadfort · Winterfell (Winter town) · Deepwood Motte · Torrhen's Square · Castle Cerwyn · Hornwood · Ramsgate · Widow's Watch · Barrowton · White Harbor · Oldcastle · Moat Cailin · Flint's Finger · Greywater Watch · Rillwater Crossing · Ironrath · Highpoint
|Rivers and Lakes:|