This section details the central entity, Shub-Niggurath, known locally as the Black Mother, including its origins, manifestations, and influence.
Shub-Niggurath, the Black Mother, is an outer god that interacts through the obsidian goat idol, compelling hosts across dimensions. It crashed intentionally in 1945 to relocate after the previous village's destruction. The entity promises fertility and abundance for sacrifices, producing endless black ichor (nutritious, aphrodisiac, mind-controlling) from its teat. Ichor spreads infection: bitten or infected become shibito (zombie-like, murmuring "great harvest" revelations), who are devoured by hybrids to complete metamorphosis into dark spawn. The dimensional slip (causing the blizzard and loop) locks the town for a full harvest, severing ties when the idol is destroyed. Winds whisper maternal temptations for added madness; the red sky and wrong stars emphasize cosmic isolation. Inhabitants weaken inevitably (exhaustion, itching, black blood coughs), accelerating toward shibito transformation as the dimension drains their essence. The cult reveres her but does not know her true name; only the museum curator does, learned from Arkham University texts.