A Page from Secrets of the Roman Catacombs.
Secrets of the Roman Catacombs was a book of maps of Roman catacombs. It was part of the Biblioteca di San Barnaba collections in 1938.
Behind the scenes[]
The book can be discovered among the many books in the corridors of the library after a thorough search.
The illustrations on the top and the bottom of the page are actually maps of the corridors in the Venetian catacombs, visited later in the game.