In Indiana Jones and the Great Circle, the Father and Son puzzle, or safe code, is a challenge you’ll encounter near the end of a side mission. To progress, meet Gina, who sets you on a journey across the city. The side quest, A Nun in Trouble, begins with a meeting at the Sistine Chapel and leads you through the Museum Wing to the Borgia Tower. Along the way, you’ll rescue Gina’s contact, Giuliana, defeat a Blackshirts goon, and collect valuable items like Giuliana’s Key and the Venus Figurine, one of the Lost Artifacts of Europe.
Highlights
- Meet Gina to unlock the next steps in the Father and Son puzzle side mission.
- The side quest A Nun in Trouble starts with a meeting at the Sistine Chapel and leads you through the Museum Wing to Borgia Tower.
- Rescue Giuliana, defeat a Blackshirts goon, and earn Giuliana’s Key, along with the Venus Figurine, a Lost Artifact of Europe.
- Use Giuliana’s Key to unlock a hidden area in Borgia Tower and find useful items, including a Medicine Bottle and the Throttle Adventure Book.
- Gather key clues: an Italian poem with circled letters (I-R-I-A-T-A-S-A) and a Polybius Square Diagram.
- Use the Polybius Square to decode the Father and Son puzzle by pairing the letters from the poem with corresponding numbers.
Father and Son Puzzle
In The Indiana Jones and the Great Circle Father and Son puzzle you will encounter at the end of a side mission. Be sure to meet a character named Gina to unlock the next steps in the quest. The side quest is called A Nun in Trouble. In this quest, Gina asks you to meet her at the Sistine Chapel, which kicks off a journey across the city. You will accompany Gina through the Museum Wing and eventually to the Borgia Tower.
Once you reach the top of the tower, you will need to defeat a Blackshirts goon to rescue Gina’s contact, Giuliana. Doing so will reward you with Giuliana’s Key. Also, keep an eye out for the Venus Figurine, one of the Lost Artifacts of Europe, which is located in the same room.
Now, it is time to use Giuliana’s Key. Go back one floor down in Borgia Tower to the spot where you used your bullwhip to cross the gap. You should spot a locked door there, which you can open with Giuliana’s Key. This leads to a balcony that houses the small headquarters of a secret order.
Gather the Clues
Now, it’s time to gather clues to solve the Father and Son puzzle in Indiana Jones and the Great Circle. One clue can be found in a drawer – a document containing an Italian poem. Look for the letters I-R-I-A-T-A-S-A, which are circled in the text.
There’s another important document in a drawer: a Polybius Square Diagram. A Polybius Square is a cipher where you figure out the correct value by finding the intersection of the rows and columns. In this case, the square has the numbers 1 to 9 in the center (the values), with letters on the outer edges: T-I-S for the columns and O-R-A for the rows.
Now that we have the clues, we can solve the Father and Son puzzle in Indiana Jones and the Great Circle. Using the information above, you will need to divide the letters from the Italian poem into pairs. Each pair corresponds to a specific numerical value in the Polybius Square Diagram.
- I-R = 5
- I-A = 8
- T-A = 7
- S-A = 3
[This should correspond to the number 9 according to the grid (S-A), but the accepted value is actually 3 (S-O). This could be due to a mistranslation or a bug.]
Rewards
Enter the code into the safe to discover a Siwa Photograph, Office Photograph, Junior Report, and Senior Report – all revealing details about the group watching Indy at the Vatican. You’ll also earn 100 Adventure Points for solving the mystery.
Remember, the solution to the puzzle may change according to the game’s difficulty level. To solve other puzzles in Indiana Jones and the Great Circle, check out our article on All Puzzles Solution in Indiana Jones and the Great Circle.
