Olivia Presteign was seated on a dais, surrounded by admirers paying court to this beautiful albino daughter of Presteign. She was strangely and wonderfully blind, for she could see in the infrared only, from 7,500 angstroms to one millimeter wave lengths, far below the normal visible spectrum. She saw heat waves, magnetic fields, radio waves; she saw her admirers in a strange light of organic emanations against a background of red radiation.