A German archaeologist and tour guide accidentally discovers the Pope in a Protestant church in Rome and is swept away by a whirlwind of questions and thoughts. When does the Pope's hand twitch, and when does it not? Why does the Libyan dictator Gaddafi flatter the Italian Prime Minister with thirty Berber horses, and why did Augustine have to bribe the emperor with eighty Numidian stallions to enforce the invention of original sin? Why is Rome a place of longing for the Germans, even though they are considered the worst barbarians there? A linguistically powerful narrative about the mysterious, glorious, and profound Rome of today - and a modern legend: How the Pope became a Lutheran.