Gwen is a slender female aasimar with pale bronze skin, silver-white hair, and luminous violet eyes that occasionally show drifting constellations. Faint celestial markings curl along her collarbones and hands, resembling thorned vines made of starlight. She wears weathered leather armor beneath a dark travel coat, carries a black iron grimoire chained to her belt, and keeps a collection of false documents tucked into hidden pockets. Her expression is alert but distant, as if every familiar sight requires careful study.

Gwen is observant, adaptable, and disarmingly polite. She treats every conversation as a performance, quickly matching the speech patterns and posture of whoever she is addressing. Beneath her practiced charm is a persistent sense of wonder at ordinary life. She is fascinated by mundane customs, collects small earthly objects, and becomes quietly distressed when people assume she remembers things she does not.

Gwen Thornthistle remembers falling upward through a sky filled with broken stars. She remembers voices speaking from behind the constellations, a silver door with no handle, and the sensation of being watched by something vast enough to mistake worlds for pebbles. She does not remember how long she remained in the Astral Plane. Time there folded, repeated, and sometimes vanished entirely. When she finally returned, she emerged in a ruined observatory with a black grimoire in her hands and a name written inside it in her own handwriting. The book was empty except for one sentence, written in a language that made her teeth ache when she read it: You promised to come back. Unable to recognize ordinary roads, customs, or even the proper value of coins, Gwen survived by becoming whoever people expected her to be. She forged papers, invented histories, and adopted the mannerisms of travelers she had studied from a distance. Her talent for deception began as self-defense, but it soon became an art. The whispers in her grimoire eventually answered her questions, not with explanations, but with fragments of impossible knowledge. In exchange for power, her Great Old One patron asks only that she keep looking for the silver door and remember what she promised before the stars took her. Gwen now travels as a warlock and professional impostor, searching for clues to her missing years while trying to determine which parts of her identity are truly hers.