Maria Haymeyer has an I.Q. of 250, once posed for a Playboy 'Girls of Mensa' feature, and has invented a radical new design for a warplane computer game she calls 'L.U.C.I.' -- short for Light Ultra Chip Intelligence.But someone has stolen her idea, and converted it to bid for a multi-million Joint Strike Fighter contract with the Pentagon. An unwilling but crucial ally in Maria's search to recover L.U.C.I. is a man called Terry Weston, who, up until now, has pursued an ultra-secret career as a corporate spy. But he is not aware of a critical fact - that L.U.C.I. is a warplane with a built-in Doomsday mechanism.