Murder on the Leviathan. Левиафан

On 15th March 1878 Lord Littleby, an English eccentric and collector, is found murdered in his Paris house together with nine members of his staff. A gold whale is found in the victim's hand - a badge owned only by first class ticket-holders on the maiden voyage of the Leviathan, the world's largest steamship.
Commissioner Gauche of the French police is called to solve the 'Crime of the Century' and narrows the suspects down to ten, who are forced to eat every meal together in the ship's Windsor Suite. Amongst these ten is the elegant young Erast Fandorin. Can he discover the murderer's identity before Gauche