Bartholamew knew of the name Web’s edge and told the party that it was a drow operations base that was located in the Underdark. It is primarily used for planning operations but is also used for people looking to hide for short periods of time or for people to commune with Llolth through the Spider-Dragon Ker-arach and the magic it wielded with one of the pieces of the Rod of Seven Parts Upon arriving here the party disguised themselves as Llolth cultists and made there way through the base with little retaliation until they reached the room which contained Ker-arach in which they fought and killed the Spider-Dragon and its carer a Yochol