The Subterranean Shunning-Grounds are Leyndell's vast underground sewer-prison, descending levels of waste-channels, oubliettes, and forgotten chapels that run beneath the Royal Capital from the Avenue Balcony's grates down to the Cathedral of the Forsaken. The Sewer-Gaol Key flavour text gives the canon's only formal name for the system: 'Filthy key received from the Dung Eater. Unlocks sewer-gaol door said to lie beneath Leyndell, the Royal Capital.' The Dung Eater himself is one of the Shunning-Grounds' permanent residents, a Tarnished sealed away in the Capital's sewer-gaol for crimes the Capital would not name in writing.

What the Capital was hiding was older. At the very bottom of the Shunning-Grounds is the Cathedral of the Forsaken, and behind its altar, a wall; behind the wall, a passageway down to a room that contains the Three Fingers, the Frenzied Flame's outer-god vessel, Marika's deepest secret. The Note: Lord of Frenzied Flame, sold by a nomadic merchant for runes, preserves the Capital's open-secret about what's down there: 'Beneath Leyndell, at the very bottom lies our lord, lord of the frenzied. The Three Fingers who holds us in thrall.' The Capital stands directly atop the thing its Order most feared. Mohg's nest is one floor up from the Three Fingers; the Omens were cast away and confined here; the Dung Eater was sealed here. The Shunning-Grounds is the Capital's negative, every body, doctrine, or possibility the Erdtree's grace refused.

◆ Sources

Key ItemSewer-Gaol Key

Filthy key received from the Dung Eater. Unlocks sewer-gaol door said to lie beneath Leyndell, the Royal Capital.

Item / MiscNote: The Lord of Frenzied Flame

Note written by a nomadic merchant succinctly detailing knowledge acquired. 'Beneath Leyndell, at the very bottom lies our lord, lord of the frenzied. The Three Fingers who holds us in thrall.'