Casanova: The Escape from Barcelona

The survival of our organization, The Rombo Code, hangs by a thread... Our oldest member and leader, Mr. Rombo, the guardian of our organization's most valuable secrets, has disappeared under suspicious circumstances. The last we know is that he was investigating the life of Giacomo Casanova. It is known that during his stay in Barcelona in 1768, Casanova had an affair with the wife of the Captain General of the army, which led to him spending 42 days in the prison located in the Montjuic Castle. Three centuries have passed until a determined history professor, an expert in the mysteries of 18th-century Europe, took an interest in the matter and decided to conduct a more thorough investigation. That man is actually Mr. Rombo, and we suspect that his disappearance is related to the investigation... However, not all news is bad. 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 arrive at the office in 60 minutes. Your mission is to discover what has happened. And Mr. Rombo? Don't worry, if you have any chance of helping him, the answer lies behind those walls.