Safe code from Father and Son in Indiana Jones and the Great Circle

Since Indiana Jones and the Great Circle is an action-adventure title, players must solve a lot of puzzles and riddles throughout the game to open chests and safes. Inside these, you will find loot or valuable information that will help you proceed in the story. One such confusing puzzle is the Father and Son safe code. Unlocking this will help you get useful hints to solve the mystery quest by the same name.

What makes cracking the Father and Son puzzle even harder is the fact that you need to get hints from an Italian poem and a diagram. This article will help you get the code in Indiana Jones and the Great Circle.

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Father and Son safe code in Indiana Jones and the Great Circle

You will stumble upon this safe in Indiana Jones and the Great Circle when you finish the "A Nun in Trouble" side quest. After finishing it, you will receive a key from Gina to unlock a gate you used during the mission. Once you go through this door, you will find this safe. Solving its combination requires players to read an Italian poem and decipher a Polybius Square diagram.

Refer to the Polybius Square diagram to solve the riddle (Image via Bethesda Softworks)

Look around to find a piece of paper with the poem and the diagram depicted above. Some alphabets from the poem will be circled. Note these down before referring to the Polybius Square diagram. Each alphabet is denoted by a number in this diagram. Using the diagram to get the numbers, solve the math equations. Luckily, the safe code is not random and is the same for every player.

The code is:

• i + r = 5
• i + a = 8
• t + a = 7
• s + o = 3

Do note that the last circled alphabet in the poem might look like an "a" but is an "o." Now, enter the code "5873" to unlock the safe and continue with the story. Inside this safe will be four case notes that are required to solve the Father and Son mystery. Additionally, you will also receive 100 Adventure Points after unlocking the safe.

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