Leonardo da Vinci und das Elixier der Macht

Leonardo da Vinci, your faithful friend and master, disappeared without a trace a few days ago. Moreover, rumors are doing the rounds that he only owes his famous genius to a mysterious substance. The Inquisition has also gotten wind of this and is already on its way to seize the powerful substance. You can't let that happen under any circumstances! So come on, can you find the substance and get it to safety before they get here?