Casanova's Escape

The survival of our organization, The Rombo Code, hangs in the balance…. 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 story, written by Giacomo Casanova himself, of his famous escape from Los Plomos prison, where the Inquisition imprisoned him for his "dissolute" conduct. We do not know what secrets the famous document hides, but we do know that in 1768, in Bilbao, one of his mistresses managed to hide it in-extremis before Casanova was arrested again. Three centuries passed, until a stubborn history professor, an expert in the mysteries of 18th century Europe, discovered and kept the documents. That man is actually Mr. Rombo, who was captured today in his office... However, it's not all bad news, we know that the documents were not seized during the robbery. Before being arrested, 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 be at the office in 60 minutes. Your mission is to retrieve the documents and escape before that happens. And Mr Rhombus? Don't worry, that's another story.