In Starless Night, Drizzt decides to return to Menzoberranzan in an attempt to keep the evil drow from launching another attack on Mithral Hall.
Alustriel, who has feelings for Drizzt, gives Catti-brie horses with magic horseshoes and makes a dwarven attendant, Fret, accompany her to the entrance of the Underdark.
Catti-brie is near Drizzt at this point, and she witnesses his capture before being taken by Jarlaxle and held prisoner by the mercenary group Bregan D'arthe.
He makes a deal with Cattie-brie in a bid to return to the surface and escape the evil drow city.
Catti-brie then explodes a section of the tunnel above the House Baenre compound, destroying most of the chapel dome and interrupting the ceremony of the Matron Mothers.
Entreri escapes to the surface, and Catti-brie and Drizzt return to Mithral Hall, on the way stopping by the resting place of Wulfgar.