Greyguard

Greyguard is a ruined fortress along the Wall, one of the nineteen castles built to defend the realm but long since abandoned by the Night's Watch. When Jon Snow becomes Lord Commander, he resolves to re-garrison the empty forts to strengthen the Watch's defenses against the threats gathering beyond the Wall. Greyguard is the second castle he targets for restoration, after Icemark, and he chooses Janos Slynt to command it—a decision born of strategic necessity and political calculation.

Location and Condition

Greyguard sits on the Wall, a fort in a sorry state of disrepair. Jon Snow himself climbed the Wall there with Ygritte and the wildlings, a memory that underscores the castle's vulnerability. When Jon gives Slynt his orders, he describes the work required: clearing back the forest, stealing stones from collapsed structures to repair those still standing, and sleeping on stone. The labor is brutal, the conditions harsh, and the garrison will be small—thirty men, a mix of Watch brothers and men lent by King Stannis. Jon hopes the hardship will exhaust Slynt and keep him from plotting.

The Command and the Refusal

Jon summons Slynt to the armory and informs him of the assignment. Slynt reacts with fury, his face turning the color of a prune, his jowls quivering. He refuses outright, calling Jon a "traitor's bastard" and insisting he is not a man to be gulled. "I was charged with the defense of King's Landing when you were soiling your swaddling clothes," he declares. Jon corrects him: the offer was a command, not a request. Slynt storms off, kicking a chair aside, and Jon hopes a night's sleep will bring him to his senses. The next morning, Slynt is breaking his fast in the common room with Ser Alliser Thorne and their cronies. When Jon gives him one last chance, Slynt laughs, dribbling porridge down his chest, and tells Jon to stick his order up his bastard's arse. Ser Alliser smiles a thin smile, and Godry the Giantslayer begins to laugh.

The Execution

Jon orders Iron Emmett and Dolorous Edd to take Slynt to the Wall—but he stops himself mid-sentence. He considers confining Slynt to an ice cell or tying him to his horse and sending him to Greyguard as a cook, but rejects both options as leaving room for future plotting. Instead, he finishes: "—and hang him." Slynt's face goes white as milk. As Edd and Emmett haul him from the bench, Slynt protests, claiming friends in King's Landing. In the yard, as the cage is prepared, Jon changes his mind again: "I will not hang him. Bring him here." He orders a block and unsheathes Longclaw. Slynt, dragged to his knees, begs for mercy, promising to go. Jon tells him he closed that door. Longclaw descends, and Janos Slynt's head goes rolling across the muddy ground. Owen the Oaf asks if he can have Slynt's boots.

Aftermath and Significance

The execution sends a shockwave through Castle Black. Bowen Marsh's mouth opens and closes without words. Ser Alliser Thorne reaches for his sword hilt but stops himself, stepping aside to let Edd pass. Stannis, watching from the steps of the King's Tower, nods and goes back inside. The killing of Janos Slynt establishes Jon Snow's authority as Lord Commander in the most decisive way possible. It also deepens the rift between Jon and the conservative faction of the Watch, led by Marsh and Thorne, who see his actions as reckless and his alliances with Stannis and the wildlings as treason. Greyguard itself remains ungarrisoned by Slynt; Jon dispatches a grizzled steward from the Shadow Tower to take command instead. The castle stands as a symbol of Jon's determination to man the Wall by any means necessary, and of the price of defiance.