When Miss Olga Chernyshevsky was shown how easy it was to make diamonds she demanded that she too should attempt the experiment—and accidently produced emeralds. The mistake meant she had to run for her life, straight into a poker game which resulted in the fight of a lifetime with the girlfriend of the notorious Arnaud 'le Loup Garou' Chavallier. And while Olga was jumping from one knife-edge predicament to another, Ole Devil Hardin's floating outfit were trying to keep the peace in Mulrooney—against heavy odds.