Celia Turnbull is a psychic and medium. She receives psychic impressions through all her senses *except* for sight. She has good control over her medium abilities but not her psychic impressions, which make it hard for her to live a normal life. Her father is a good friend of the Radcliffes and has placed Celia under their care for her "special abilities". Friends with Nissa, who sort of good-naturedly acts as her "handler" and anchor to the real world.