Much like her twin sister, Flynn is a young girl with pale skin, light reddish brown hair that goes down above her neck, and a ponytail tied with what seems to be a white ribbon. She wears a white dress with a dark gray vest and light brown boots, except for her satchel is green and hung from her right shoulder to the left waist, while Ellen's is hung in the opposite way.
At some point before Alfyn's arrival to Goldshore, an unknown illness plagued the town and Flynn was one of the unlucky townspeople who caught it. Fortunately for her, a traveling apothecary gave her some medicine to help bring down her fever.
Later on, due to a side effect of the medicine given to her, Flynn developed a bad cough which was so frequent she could barely breathe. After a diagnosis and later treatment from Alfyn, another traveling apothecary, she was cured of her illness. As a thank you gift to him, both she and Ellen gave him some shells.
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"Flynn" is a Irish surname meaning "Ruddy" or "Reddish".