Fawn is a slender tiefling woman with warm russet skin, swept-back black horns, golden eyes, and a long tail tipped with a tuft of dark fur. Her auburn hair is usually tied back with strips of stained linen. She wears practical scale mail beneath a weathered leather apron, with potion vials, tiny tools, dried herbs, and brass mechanisms hanging from numerous belts and pouches. Her hands are often marked with ink, ash, and medicinal stains.

Fawn is compassionate, curious, and practical. She speaks to injured people in a calm, reassuring voice, but becomes intensely focused and almost impatient when examining a mysterious artifact or unusual illness. She distrusts institutions that hoard knowledge, yet eagerly befriends individual scholars, healers, and craftspeople. She has a merchant's eye for value, but her conscience usually wins when profit conflicts with someone else's survival.

Fawn has no memory of her birth, her family, or the place where she first opened her eyes. She was found as a child beside a ruined roadside shrine, wrapped in a scorched blanket and clutching a brass vial etched with a symbol she could not read. The hermit who discovered her, an aging healer named Sister Orla, raised her in a remote woodland retreat. There Fawn learned herbalism, basic medicine, and the quiet disciplines of prayer and observation. She also learned that many people feared her infernal appearance before they ever heard her speak. As she grew older, Fawn began combining healing lore with mechanical craft. She built tiny alchemical stirrers, self-heating kettles, collapsible splints, and clockwork leeches designed to draw poison from wounds. Eventually, she left the retreat and became a traveling merchant of potions and remedies. She charges those who can afford it, but quietly gives medicine to the poor, the sick, and anyone who reminds her of the frightened child she once was. Every bottle she sells bears a small copy of the mysterious symbol from her brass vial. Fawn believes someone, somewhere, may recognize it and reveal where she came from. Until then, she follows rumors, treats the ill, and searches for the truth one road, ruin, and forgotten workshop at a time.