"I have an idea that a certain man is going to commit murder. He told me so--in so many words." If Ludovic Travers hadn't been so sure the man was serious, he might not have gone snooping. If he hadn't kept his eyes peeled, he might have noticed what happened to the housekeeper's hair. It is even less likely he would have uncovered those dark deeds that took place in France, deeds that led to three violent deaths. The Case of the Housekeeper's...