Soreni is first encountered in the Moonrise Towers Prison, conversing with fellow drow Zealot Zira about the fates of the True Souls that have received audiences from Ketheric Thorm and the Absolute. Talking with Soreni lets her tell the party that they have moved all the cargo to the docks outside.
Should the party attempt to help the gnomes and tieflings escape from the prison, Soreni can join The Warden in pursuit of the escapees should the cells be opened (either by the party, or by the Warden). Soreni can then engage the prisoners in combat and kill them if the party does not intervene.
Defending Moonrise Towers
If the Nightsong is freed and the Harpers launch their assault on Moonrise Towers, Soreni is killed during the subsequent battle. Her corpse will be situated next to the staircase leading into Moonrise Towers, at X: -153 Y: -114.