|Appears in||The Way of Kings, Words of Radiance, Oathbringer|
Rysn is a Thaylen apprentice merchant to Vstim, whom she finds to be a very strange but knowledgeable person, and from whom she can learn a lot about mercantile enterprise. She is a practitioner of Vorinism to keep up appearances, but she does not particularly take some of the traditions to heart; she finds covering her safehand merely a silly tradition. She is also very observant, as evidenced by her listening to a sales pitch between her master and a Shin farmer called Thresh-son-Esan. From it, she deduces that the Shin haggle to undermine their products, rather than boasting about them.
She finds Shin culture to be very odd, and because of this her master, Vstim, tries to get her to appreciate their culture by ordering her to cut out a section of grass from Shinovar, which didn't move like she was used to, and care for it until she no longer finds it strange. She later names it Tyvnk, which means Sullen.
The next year, Rysn and her babsk were in the Reshi Isles trading with Talik, an occupant of a Tai-na called Relu-na. Vstim feigned sickness in an attempt to give Rysn practice trading with real stakes. When Rysn thinks the trade is at stake, she acts rashly and attempts to speak to Relu-na itself by lowering herself down near it's head. However, the rope she was clinging to snapped and she fell a large distance. She only survived because the island's soul itself saved her by cushioning the fall. In the end, Vstim gets the corpse of a larkin, his original trade which was never at stake, but Rysn is given a very rare live larkin by the island itself.
Rysn now keeps Queen Fen's ledgers. She believes the job to be a good one, with an office in the Thaylen Gemstone Reserve. Vstim had traded favors for her to get the position. Her apprenticeship with him is now finished, and she is a free woman.
However, due to her fall in the Reshi Isles, she now cannot feel her legs, nor can she control certain bodily functions. She has to rely on her porters to move her, though she can balance while sitting.
Her duties include annotating the queen's pending mercantile contracts with references to previous ones, keeping the queen's personal vault in the Gemstone Reserve, preparing weekly expenditure reports, and accounting the queen's salary as a portion of taxable income from various Thaylen interests at home and abroad.
Apparently, Renarin (referred to only as " ... that Radiant" by Vstim) cannot heal Rysn's legs. She states that it's been too long since her accident, which she deems appropriate, that this is her consequence - payment for the contract she entered into willingly the moment she climbed down the side of the greatshell.
Rysn believes that one must trade from a position of power, something that she can never do again as a cripple.