Shadow Fringe

Chaulssin ( pronounced : /ˈ tʃ ɔː l s ɪ n / CHAWL-sin ) was a drow city in the Underdark . To some, it was the City of Wyrmshadows . Chaulssin lay beneath the northern Rauvin Mountains . It overhanged an extremely deep abyss and cold winds howled permanently through the city. It rested upon a great spar of stone. After it was conquered by shadow dragons and ruled by their descendants, the city was partially brought into the Plane of Shadow . Tendrils of shadow-stuff wound constantly through the city and deadly shadow creatures haunted the streets. Sometimes whole quarters of the city vanished into the Plane of Shadow and reappeared years later. Due to its remote location and obscure history, Chaulssin was largely unknown to most inhabitants of the Underdark, let alone the World Above. This fact made it a perfect stronghold for the secret brotherhood of the Jaezred Chaulssin .

Ched Nasad (pronounced: /ˈ tʃ ɛ d n ɑː ˈ s ɔː d / CHED na-SAWD), or the City of Shimmering Webs or City of Webs, was a drow city in the Middle Northdark that was destroyed on Uktar 3, 1372 DR.