An entire urban district submerged just offshore from the Virelay Coastlands — visible only at the extreme low tides that come once or twice a Cycle. Rooftops, bell-towers, and market-squares all preserved beneath the waterline, fish moving through doorways like wind through an open house. No one knows when the Drowned City sank or what it was called; Marrow Bay's bone-fishermen recover artefacts from it that the Luminous Fold has been classifying for three Loops without resolution. Vaultkeepers believe it is older than House Thorne by an order of magnitude they prefer not to discuss in public. The Echo has been sighted in its sunken streets.

No stories reference this entity yet. This part of the world awaits its chronicler.