The Prague Cemetery - Umberto Eco, Vintage

Nineteenth-century Europe abounds with conspiracy both ghastly and mysterious. Jesuits plot against Freemasons. Italian priests are strangled with their own intestines. French criminals plan bombings by day and celebrate black masses by night. Every nation has its own secret service, perpetrating forgeries, plots, and massacres. But what if, behind all of these conspiracies, lay just one man?