This is one of the best Zelda Popkin has done. She always manages to get hold of some new tricks; this time its a new drug, one designed to stop coagulation. The young Doctor who tells the story, a victim of North Africa, talked out of turn and planted the germ of the idea at an oddly assorted houseparty, where everyone hated everyone else. The results; -- death of a psychiatrist, an attempted suicide, a smalltime panderer of stolen information run down by a truck, a millionaire shipbuilder at death's door in Union Station, Washington. Fast-pace -- good reading.