Ward Pistle can be found at X: -606 Y: 384, where she together with Ward Magmar guards the entrance to the elevator leading up to the Shadow-Cursed Lands.
To while away the time, Pistle and Magmar maltreat the deep gnome slave by the name Skickpit, bossing him again and again to bring them both beer from the barrel that stands nearby, down the stairs.
Ward Pistle is a loyal member of the Clan Flameshade. Should the party conspire with Elder Brithvar against Nere, Pistle would join them against the drow and Duergar cult novices. However, she is positioned too far from the possible location of the battle with Nere and his allies.