Welcome to NGB and our Indiana Jones and the Great Circle guide on the Secret of Secrets mystery quest. This guide will cover everything you need to know so you can easily complete the quest.
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How to Start Secret of Secrets
To begin the Secret of Secrets mystery in Indiana Jones and the Great Circle, pick up Nicoletti’s Letter from the office in the Sistine Chapel.
Secret of Secrets Walkthrough
For this mystery, you’ll need to find 3 notes and open the Locked Safe.
For this quest, pick up St. Peter from the small table next to the single chair near the table where you retrieved Nicoletti’s Letter and rotate the statue to reveal the symbols on the bottom.
Next, look at the bottom of the St. Paul statue next to the safe behind the desk in this same room.
Also, acquire the Planetary Chart mystery note from the desk drawer in front of the safe. This will show which symbols correlate to which numbers.
Use the code of “4471” to open the safe.
Inside, you’ll find the Forged Book. Pick it up to reveal the Mystery Note – Hidden Note. After you retrieve this note, the quest will end.
More Indiana Jones and the Great Circle Guides
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