The Vatican is full of tiny mysteries for you to solve as you explore in Indiana Jones and the Great Circle, waiting for you to discover them. A smaller mystery you can learn about is A Snake in the Garden, where you’ll have to solve a bookshelf puzzle.
You can find this while exploring the Apostolic Palace on the southeast side of the map. Entering this location is restricted, but if you can find the Blackshirt Disguise shortly after meeting Gina the first time, it makes entering this location much easier. The puzzle for the bookshelf is challenging, but after working your way through some of the wordplay, the answer should become much easier for you to narrow down. We’re going to help you solve the A Snake in the Garden bookshelf puzzle and break down the exact code you need to use in Indiana Jones and the Great Circle.