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Indiana Jones and the Great Circletruly has mysteries around ever corner, including the literal “mystery” side quests found throughout each level.
Indiana Jones and the Great Circle: All Collectibles at Marshall College
Where to find every collectible and field note in the Marshall College location.
One of these mysteries can be found above the Sistine Chapel in The Vatican, and is called the Secret of Secrets (and we know what the secret is).

Find the Letter
First, findNicoletti’s Letteron the table near the door. It will tell you that you must look toPeter, and thenPaulto find the combination to the nearby safe.
Find the Symbols
First, pick up the Saint Peter statue in the corner androtate it to see the undersideof the statue. Take note of the two symbols on the bottom, then do the same with the Saint Paul statue sitting next to the safe (note that these are upside down).
Crack the Code
There is adrawer beneath the deskwith the globe, which can be opened to reveal the key to the safe code. Each symbol has a corresponding planet, which is numbered from closest to farthest from the sun. One of the symbols is missing from the key, but is seen under Saint Paul, so we can infer that this is the fourth missing symbol.
Review: Indiana Jones and the Great Circle
Machine Games manage to deliver an engaging and entertaining adventure game (and retrieve their fedora on the way out).
The code for the safe, in this case, is7741.
Open the Safe
Enter the code on the safe to open it, which contains a few secret notes, as well as theCutman I Adventure Book. This should complete the quest (completionists, be sure to grab all the notes we mentioned).
Indiana Jones and the Great Circle: How to Discover the Underground Boxing Ring at The Vatican
How to sneak into the Underground Boxing Ring Discovery quest in The Vatican.
Indiana Jones and the Great Circle
Uncover one of history’s greatest mysteries in Indiana Jones and the Great Circle™, a first-person, single-player adventure set between the events ofRaiders of the Lost ArkandThe Last Crusade. The year is 1937, sinister forces are scouring the globe for the secret to an ancient power known as the Great Circle, and only one person can stop them - Indiana Jones. You’ll become the legendary archaeologist in this cinematic action-adventure game from MachineGames, the award winning studio behind the recent Wolfenstein series, and executive produced by Hall of Fame game designer Todd Howard.



