The Idoneth Enclaves are the hidden undersea kingdoms of the idoneth-deepkin, secretive aelven civilisations dwelling in the deep places of the Mortal Realms' oceans and drowned deeps. Each enclave is a self-contained realm with its own customs, martial traditions and shades of temperament, from the noble to the outright predatory.
The Deepkin conceal their existence with obsessive care, for they harbour a terrible secret: their souls are flawed, and to survive they must harvest the souls of others in raids upon the surface world. Cloaked in mist and sorcery, an enclave's warriors emerge from the sea to reap living essence, then vanish before dawn, leaving only drowned villages and whispered legends of ghostly aelven raiders.
Though scattered and mutually wary, the enclaves share the shame of their origin, having been abandoned and reforged by the god Teclis after his first flawed attempt to create them. Their hidden cities endure in the crushing dark, beautiful and merciless, forever balancing survival against the horror of what they must do to endure.