The Lord Commander of the Night's Watch tasked Ser Olyver Bracken and Ser Raymund Mallery with restoring the crumbling Rimegate and Sable Hall, respectively, but the two former Kingsguard rebelled from the Night's Watch in 50 AC with the intention to make the castles their seats as lords. After loyal brothers of the Night's Watch recaptured Rimegate with the aid of Winterfell, Raymund and his followers fled from Sable Hall beyond the Wall. Lord Walton Stark pursued the rebels into the haunted forest, but he was overwhelmed by giants A wildling chieftain eventually delivered Raymund's head to Eastwatch-by-the-Sea, claiming that his clan had eaten Raymund's men.
A Dance with Dragons
Lord Commander Jon Snow considers re-garrisoning Deep Lake or Sable Hall with wildlings under the command of Halleck, although neither castle is ready for human habitation yet. Jon later tells Torghen Flint that Sable Hall is garrisoned, although undermanned.