Nadia the Unbent
Nadia the Unbent is a member of the Xanathar Guild who commanded a watch post in the Arcane Chambers of the Undermountain.
TGA first encountered her when Shunn Shurreth was leading them to Skullport and they passed by her post. Shunn stubbornly refused to move forward without the party handing over the wooden wand, but the party instead spoke directly with Nadia, who let them pass. Nadia seemed jovial as she fended off her guild members in a training game, but when Vala challenged her to this and succeeded, she refused to hold up her end of the deal and told the party to move along.
The party encountered her again later that night, when they were returning from their fight with House Auvryndar in Stromkuhldur. The party walked into the watch post and asked for a place to rest for the night. Nadia said yes, but that night she revealed she was going to tie up the party to take them to Skullport.