Hoarfrost Hill

Hoarfrost Hill is one of the nineteen castles along the Wall that the Night's Watch built over the centuries to defend the realm, only to abandon as its numbers dwindled. By the time Jon Snow becomes Lord Commander, only three of the forts are still manned: Castle Black, Eastwatch-by-the-Sea, and the Shadow Tower. The rest stand empty, their stones crumbling, their gates sealed, their roofs open to the sky. Hoarfrost Hill is among those ruins, a name on a map rather than a living garrison.

Strategic Significance and the Garrison Plan

When Jon Snow negotiates the mass crossing of Tormund Giantsbane's free folk through the Wall, he faces an immediate problem: where to house thousands of starving, homeless people who have been the Watch's enemies for generations. His solution is to reopen the abandoned castles and settle the free folk in them, under the command of black brothers. Hoarfrost Hill is one of the castles he earmarks for this purpose. During a council with his officers, Jon asks Bowen Marsh and Othell Yarwyck for their views on which wildling chiefs should be given which forts. He lists Hoarfrost Hill alongside Rimegate as still lacking garrisons, and proposes candidates such as Brogg, Gavin the Trader, the Great Walrus, Howd Wanderer, Harle the Huntsman, Harle the Handsome, Blind Doss, and Ygon Oldfather. The Lord Steward and First Builder reject every name, insisting that all the wildling leaders deserve nooses rather than castles. Jon presses them, but gets no constructive counsel; the exchange reveals the deep resistance within the Watch's leadership to trusting the free folk with any stronghold, no matter how ruined.

The Broader Context of the Wall's Defenses

Hoarfrost Hill's role in the story is defined by its absence. It is never visited, never described, never garrisoned within the timeline of the novel. Its significance lies in what it represents: the impossible math of the Wall's defense. Jon Snow has reopened Icemark, Greyguard, Long Barrow, Sable Hall, and Deep Lake, but ten castles still stand empty. Hoarfrost Hill and Rimegate are the next on his list, but he cannot find men he trusts to hold them. The free folk are too numerous to keep penned up at Mole's Town, too dangerous to leave leaderless, and too valuable as potential allies against the Others to waste. Yet every castle given to a wildling chief is a castle that might be turned against the Watch if the peace fails. Hoarfrost Hill remains a theoretical garrison, a problem deferred, a name on a map that may never be manned before winter comes.