The Sibylline Books Go Up in Smoke
A mysterious woman offered Rome nine prophetic books—then burned them to prove a point.

Jacques Louis David — "The Death of Socrates" (1787), public domain
A Prophetess at the Door
In the early days of the Republic, a veiled stranger appeared before Rome’s last king. She claimed to hold nine books of prophecy. Her price: a fortune. Tarquin laughed in her face, so she burned three and offered the rest—at double price.
The Cost of Doubt
Unfazed by Tarquin’s mockery, the woman torched three more books. Only then, with fear spreading, did the Romans agree to buy the final three—at her steepest price. These became the legendary Sibylline Books, secrets to the city’s fate, guarded for centuries in the Capitoline temple.
A Deal Written in Ashes
Rome ended up paying a king’s ransom for a third of what it could have had. The city’s priests would consult the surviving books in every crisis—always wondering what burned away that day.
Rome paid a fortune for a third of what it could have had, and the city’s greatest secrets would rest on what survived that fire.