Location from The Gods are Bastards by D.D. Webb
The deep drow domain — where Scyllith-worshipping drow practice a philosophy of cruelty and power that makes even the Narisian drow uncomfortable.
N'Jendo is the dark mirror of Tar'naris — proof that drow culture can go in very different directions depending on which goddess they follow. The deep drow worship Scyllith, the Elder Goddess of Light and Cruelty, and their society is organized around her philosophy: power is beauty, and beauty is the willingness to cause pain. Surface-dwellers rarely visit N'Jendo and rarely want to. The deep drow consider Narisian drow traitors for choosing Themynra over Scyllith, and the feeling is mutual. It's one of the most dangerous civilizations on the continent — not because they're chaotic, but because they're organized around principles that make coexistence impossible.
Deep underground caverns, far below even Tar'naris, lit by harsh magical light that casts stark shadows. Architecture designed to intimidate — sharp angles, exposed mineral veins like open wounds, and ritual spaces stained with centuries of sacrifice. The aesthetic is deliberately hostile: beauty twisted into menace.
Also known as: N'Jendo, The Deep Drow City