Ardin is a very fit and vivacious woman in her early fifties. She is the strong-willed woman in charge of the Buckner family of Klamath. She runs a combined bar, hostel, and shop, the Buckner House, in addition to a brahmin herd, which are the sources of her income. She is friends with many of the town's residents, including Whiskey Bob, who always seems to have some hooch available.
She has two children - Maida and Torr Buckner, who help her in running the business, one with her refined merchant's sense and the other with sheer physical prowess (despite his rather limited intellectual aptitude) - and was looking to form a permanent relationship with Smiley the Trapper, but before she could finalize it, he went missing in the toxic caves.
Ardin provides some information on Klamath and its denizens. If the Chosen One helps the Duntonsrustle the brahmin, she will also be worried about Torr, who went missing in the canyon west of town. Obviously, if the Chosen One lets either Smiley or Torr die (or kills them purposefully), she will be devastated.