The city's internal machinations have continued unabated for millennia. The Houses that grow weak are destroyed, and newer Houses rise up to find Lolth's favor. The full history of each House would constitute a nearly endless logbook of treachery, spite, and unceasing ambition. Within the last century, this pattern seems to have accelerated. House Do'Urden ascended from the Tenth House to the Ninth House by destroying the Fourth House, House DeVir. It then ascended to the Eighth House with the much-needed help of Jarlaxle's mercenary band Bregan D'aerthe by destroying the Fifth House, House Hun'ett. House Do'Urden lost the favor of Lolth, however, when Matron Malice Do'Urden turned Zaknafein into a spirit-wraith by using Lolth's dread "Zin-Carla" ritual and failed to kill Drizzt Do'Urden with him. This resulted in House Baenre utterly destroying House Do'Urden.