"This is the famous Bois de Boulogne Sam." "The what?" "Bois de Boulogne, one of the most popular drives in Paris." "Huh!" grunted Sam Hickey. "That sounds to me like some kind of sausage. What do they ever name their streets that way for in Paris?" "All the names in this great, gay city mean something," answered Dan Davis. "This park here bears the same name. It was infested by desperate robbers as far back as the fourteenth century." "Robbers!" exclaimed the red-haired boy. "Yes."