"It is 1889, and the entire world breathlessly anticipates the Paris World's Fair and the opening of Monsieur Eiffel's iconic tower. The Twelve Detectives - a society of the twelve most famous, compelling, and dazzling detectives from around the world - have been asked to discuss the secrets of their trade as past of the fair's lineup of events." And, of course, one of the Twelve is discovered dead at the foot of the gleaming Eiffel Tower.