Tchernobog lays dead, his form fading away from the world as Caleb turns his back to the smoldering corpse. Vengeance sated, he leaves the Hall of the Epiphany behind. Feeling no less disdain for the world than he did with Ophelia, and experiencing none of the joy she brought, he returns to the grave to die once more. A hopefully final resting place.
The Cabal had been scattered far and wide by the gunman's path of revenge, but in his absence they regathered, regrouped, motivated out of their own sense of vengeance. Caleb was their general, the chosen one of their dark god and he had betrayed them all twice over.
He must burn for rejecting the honor of being sacrificed, for striking at Tchernobog. This suffering is best repaid by the tongues of Cerberus. Gathering his remains, the diaspora cinders of his pit, they enacted plans to resurrect him, and sought out Caleb's newfound grave, and bring him face to face with a fiery end.