Isho'dnah
Isho'dnah is a fictional location within the Elder Scrolls universe, specifically associated with the Daedric Prince Hermaeus Mora. It is described as a hidden apocryphal realm containing forbidden knowledge and secrets.
Isho'dnah is not a prominently featured location in any of the main Elder Scrolls games. Its mention is often relegated to lore books, dialogue, and supplementary materials, contributing to its mysterious and enigmatic nature. It is understood to be closely tied to Apocrypha, Hermaeus Mora's better-known and more thoroughly explored Daedric realm of infinite libraries and forbidden texts.
While Apocrypha is a physical location (within the context of Daedric planes) that can be visited in The Elder Scrolls V: Skyrim through the Dragonborn DLC, Isho'dnah remains largely unseen and undescribed in concrete detail. It is implied that Isho'dnah might be a particularly well-guarded or inaccessible section within Apocrypha itself, or possibly a separate but closely affiliated realm, containing knowledge even Hermaeus Mora keeps hidden from most mortals and perhaps even other Daedra. The term evokes a sense of deeper, darker secrets within the already secretive domain of the Daedric Prince of knowledge and fate.
Due to its limited appearances and vague descriptions, the precise nature and appearance of Isho'dnah are largely left to interpretation and speculation within the Elder Scrolls community. It serves as a conceptual space representing the ultimate depths of hidden and potentially dangerous knowledge.