Amara Quartey-Prempeh is a broad-shouldered woman with deep umber skin, thick silver-streaked locs piled high in a wrap of orange and violet fabric, and bioluminescent nodes implanted along her collarbone that pulse faint teal when she's calm and shift toward amber when irritated — a mod she got thirty years ago and never bothered to update. Her hands are permanently stained at the knuckle from decades of grinding pigments and compounding analgesics, and she keeps them immaculately clean otherwise. Her stall is a riot of hanging dried root bundles, labeled vials in hand-scratched script, and a small shrine to the E.L.F. of the Alban Souk's ancient refrigeration system, whom she calls Grandmother Cold and leaves offerings of condensation data scraped off cold-chain logs.

She has the unhurried authority of someone who has outlasted every neighboring vendor twice over. She will diagnose your ailment before you finish describing it, recommend something from a hand-labeled tin, and tell you exactly why the Helix Biosystems kiosk down the corridor is going to overcharge you for the same molecule. She is not unkind, but she is not gentle either — she has zero patience for self-pity, charges a sliding scale she decides unilaterally, and occasionally refuses to sell to people she deems 'about to do something stupid with it.'