A sleepy village suddenly becomes the subject of gossip for the whole of England: still, because an unheard of crime has happened here! A local scientist sent an assistant to Malta to buy a unique Peruvian mummy in a green sarcophagus. Only when the professor opened the box, instead of a load, he found the corpse of his assistant inside... If a great detective like Hercule Poirot were nearby, he would have solved this riddle in two counts. But the detective was not found...