Mentore,
I did as you so requested. Infiltrating the Vatican to retrieve and destroy any existing copies of Signore Da Vinci's war machines was not as difficult as I thought. Escaping the Vatican was an entirely different story.
I managed to find copies of these machines in his desk and packed them away for later destruction. Going unnoticed wasn't that difficult until I ran into Cesare Borgia though. Before I knew it, I was being chased by guards. I managed to escape though and burned the documents once I was on safe grounds.
I saved the ashes in case you wish to have proof~
