One hundred years ago a deadly super-virus infected all of humanity-killing only the men-and making it impossible for boys to be born alive. Women, alone, have been ruling the world ever since.When a cure for the super-virus is eventually discovered-men are able to be born again-and the women begin reintroducing boys back into society. However, there are some who are not happy about the return of men to civilization. A secret cult of man-killers, called the Sicarii, plot to make sure that men stay extinct forever.Nancy Rose is a young US federal agent under the powerful Department of Safety-an institution that insists everyone conform to their safety rules or else. She and her fellow agents are specially charged with the protection of boys from the murderous Sicarii.When Nancy receives a tip that leads to a party for man-killers, she is put on a path to confront one of the queens of the Sicarii-the mysterious Queen of Spades. Nancy will need to shoot from the hip, aim straight, and watch her back -plus keep her own secrets from being uncovered- in order to stop the man-killers before it is too late.