Casanova's Escape

The survival of our organization, The Rombo Code, hangs by a thread... Our oldest member and leader, Mr Rombo, has been found and captured by our enemies, The White Cube. Mr Rombo was the guardian of one of the organization's most valuable secrets: The true account, written by Giacomo Casanova himself, of his famous escape from the Plomos prison, where the Inquisition imprisoned him for his "dissolute" behavior. We do not know what secrets the famous document hides, but we know that in 1768, in A Coruña, one of his lovers managed to hide it in-extremis before Casanova was arrested again. Three centuries passed, until a stubborn history professor, expert in the mysteries of 18th Century Europe, discovered and stored the documents. That man is actually Mr Rombo, who was captured today in his office... However, not all news is bad, we know that the documents were not taken in the assault. Before being captured, Mr Rombo created a complex encryption system so that only other members of The Rombo Code can find them. We know that someone has called the police who, by our calculations, will show up in 60 minutes at the office. Your mission is to recover the documents and escape before that happens. And Mr Rombo? Don't worry, that's another story.