Manuscript 512 — the Lost City of Bahia
The story
In the National Library of Brazil sits a document that has sent men to their deaths. It is dated 1753, and it is known simply as Manuscript 512. Across its pages, a band of Portuguese bandeirantes — the rugged frontier explorers of colonial Brazil — describe what they claim to have stumbled upon in the Bahian backlands: a vast abandoned stone city, silent and overgrown, with paved plazas, carved inscriptions in an unknown script, and rich veins of silver running through the surrounding land.
It reads like the ruins of a forgotten civilization, hidden in the interior wilderness of Bahia. And then the trail goes cold. The city was never relocated. No expedition has matched the manuscript's description to a place on the ground, and the inscriptions, the plazas, the silver remain words on a page rather than stones anyone can stand among.
Yet those words proved powerful enough to shape one of the great obsessions of exploration history: Manuscript 512 helped inspire Colonel Percy Fawcett's lifelong search for the "Lost City of Z" in the Brazilian jungle. The document is real — you can find it catalogued in Brazil's National Library. The silver-rich city it describes is another matter entirely, never found, never confirmed, a ruin that may exist only in the telling of long-dead explorers.
Fact vs. legend: Manuscript 512, dated 1753 and held in Brazil's National Library, is a documented historical document, and its influence on Percy Fawcett's quest is recorded; the abandoned stone city and its silver it describes were never relocated and remain legend.
Search area: No reliable public coordinates exist for this case, so it is not placed on the map.