Underdark

Aboleth Underdark - An ancient and evil race of bottom-dwelling aquatic creatures
Aleval Underdark - Fae Mhor noble house, ranked 8th, neutral
Barikha Underdark - Realm of the Underdark held by Mind Flayers of the Diruplec Cult
Bel'raldar Underdark - Realm of the Underdark held by Fae Mhor (Aleval)
Besheri Underdark - Realm of the Underdark held by Mind Flayers of the Shakumauk Cult
Dark Boatmen Underdark - Diminutive, mysterious & inviolate race who control the Fallships which ply the vertical waterways linking the realms of the Underdark.
Dash Underdark - Coinage of the Underdark, plain-looking black discs, used to trade for passage with the Dark Boatmen, among other things
Despana Underdark - Fae Mhor noble house, ranked 3rd, Kilsek-Despana-Noquar-Everhate-Godeep faction
Disrel Underdark - Realm of the Underdark, desolate and uninhabited
Eilservs Underdark - Fae Mhor noble house, ranked 1st, Eilservs-Tormtor faction
Everhate Underdark - Fae Mhor noble house, ranked 5th, Kilsek-Despana-Noquar-Everhate-Godeep faction
Fallships Underdark - The technomagical vessels used by the Dark Boatmen to ply the waterfalls of the Underdark.
Gengar's Blade Underdark - Tavern in Erelhei-Cinlu, specializing in combat displays and bloody exhibitions of torture
Ghetto of Artisans Underdark - District of Erelhei-Cinlu
Ghetto of Chattels Underdark - District of Erelhei-Cinlu
Ghetto of Foreigners Underdark - District of Erelhei-Cinlu
Ghetto of Outcasts Underdark - District of Erelhei-Cinlu
Ghetto of Performers Underdark - District of Erelhei-Cinlu
Ghetto of Savages Underdark - District of Erelhei-Cinlu
Ghetto of Scholars Underdark - District of Erelhei-Cinlu
Ghetto of The Dead Underdark - District of Erelhei-Cinlu
Gloigan Underdark - Realm of the Underdark held by the Duergar
Godeep Underdark - Fae Mhor noble house, ranked 6th, Kilsek-Despana-Noquar-Everhate-Godeep faction
Jerrata Underdark - Realm of the Underdark, deserted, the Goodly Realm
Kilsek Underdark - Fae Mhor noble house, ranked 2nd, Kilsek-Despana-Noquar-Everhate-Godeep faction
Kinasha Underdark - Realm of the Underdark held by the Kuo-toa
Maraka Underdark - Circle of ancient standing stones in the Underdark realm of Jerrata, powerful site of Good
Melaskos Underdark - Realm of the Underdark held by the Aboleth
Nindelvel Underdark - Realm of the Underdark held by Fae Mhor of the Kilsek faction
Nindolen Underdark - Realm of the Underdark held by the Fae Mhor in general
Nines, the Underdark - Tavern in Erelhei-Cinlu, operating base of Jalvan and his Rakes
Noquar Underdark - Fae Mhor noble house, ranked 4th, Kilsek-Despana-Noquar-Everhate-Godeep faction
Shadizaar Underdark - Gateway realm to the Underdark, the central junction from which all the ways begin
Street of Lies Underdark - The only place in Erelhei-Cinlu where worship of Gods other thal Lolth is permitted
Tarrin Underdark - Realm of the Underdark held by unknown forces
Tormtor Underdark - Fae Mhor noble house, ranked 7th, Eilservs-Tormtor faction
Underdark Underdark - Vast complex of linked caverns below Alair, home to many species, primarily the Fae Mhor & their allies.
Wedrith Underdark - Fae Mhor noble house, renegade
Zhatril Underdark - Realm of the Underdark held by Fae Mhor house Eilservs