Bregan D'aerthe has been very influential in the chaotic happenings of Menzoberranzan and has connections with Blingdenstone and has agents in Ched Nasad as well as major cities on the surface, most notably Luskan, Waterdeep, Calimport, and Heliogabalus.
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In return, Lolth gave Wulfgar over to Errtu as a prisoner, means by which the mighty demon could gain his revenge on Drizzt.
Most recently he led the design of Menzoberranzan: City of Intrigue (2012), covering the sinister underdark metropolis famous for birthing the drow Drizzt Do'Urden.