Emma analyzes tether episode data and discovers that Abigail's mapping sessions have been calibrating the tether bidirectionally: each episode worsens the corruption but also builds Abigail's capacity to reach through it.

Arthur argues with Dominick about the sacrifice plan. Dominick presents cold math: 4 seconds vs 8. Arthur cannot refute the logic. He accepts, then tells Frieda about Dominick's decision. They begin planning to give Dominick the best possible tactical window.

Belphegor uses Nida as bait. Haatim knows it's a trap, goes anyway with Dominick to Hartford. Confronts the demon wearing his sister. Nida surfaces one final time, says 'let me go, bhai', asks him to save Abigail. Haatim destroys the demon. Nida is gone.

Thune summons Ren to his spartan tent for the eastern advance briefing, revealing that 37 brands have reduced him to near-mechanical precision. Ren probes for the human behind the weapon and receives the haunting admission: I was a farmer. I think.

Thirty thousand wardens march to the Dark Citadel for the decisive assault on the imprisoned Void Walker. Gregory and Tam share poignant farewells as Tam hands over his contingency succession plan; Bryce says a likely-final goodbye to Abigail; Mina finalizes the mage circles.

Asha val Mechas discovers monitoring Station Fourteen has gone silent with clean cessation, not malfunction. A patrol finds shadow-ground: blackened, cold, changed soil over 200m diameter with the station itself vanished.

Lethane summons Ren and confesses she always knew other gods existed — maintained the lie for unity. No apology: 'Make sure it's worth the cost.' Then Callum faces his personal cost: Sister Dael arrested for distributing heretical texts.

Intelligence from multiple fronts converges on a single point in the Sunderlands called the Crucible, identified as the source of the demonic plague and all boneglass networks. Lethane declares an all-or-nothing campaign to destroy it.

Ren leads the group into a silent abandoned village where residents have vanished without violence. He discovers boneglass veins glowing in the foundation walls and warm ground beneath the cellars—evidence that the town has been consumed by the boneglass network.