Beneath the shadow of the Great Pyramid lies the Chamber of Resonance, a mysterious underground puzzle that challenges even the keenest adventurers. In Indiana Jones and the Great Circle, solving this enigma requires deciphering ancient Adamic tablets, navigating hidden passages, and speaking a secret phrase that unlocks the path to the Idol of Ra. Ready your camera, lighter, and hammer-Indy’s greatest test in Gizeh is about to begin.
How to start the Resonance Chamber puzzle
To start the Resonance Chamber puzzle in Indiana Jones and the Great Circle, begin by following the main questline to the Great Pyramid of King Khufu. Near the pyramid, find the encampment and pick up the hammer on the table. Use the hammer to break through a brick-blocked hole in the ground, then head down the slope and enter the left doorway. Crawl under fallen bricks to reach the Chamber of Resonance. Once inside, start by taking photos of the Adamic stone tablets on the walls. This action will trigger a cutscene and prompt you to consult Dr. Lombardi’s journal, initiating the puzzle sequence.

As part of the “Idol of Ra” main story adventure, you’ll head to the pyramid just west of the Khafre Excavation Site to look for clues.

You’re looking for a pile of stone blocks under a small tree. Those blocks form an overhang over a small tunnel. When you find the tunnel, you’ll need a two-handed weapon – you can find a sledgehammer at the tent just across the road.
Take that back and smash through the fragile wall to enter the tunnels. There’s only one path through, and it will lead you to the Resonance Chamber.
Resonance Chamber clues
To solve the Resonance Chamber puzzle in Indiana Jones and the Great Circle, start by photographing the Adamic tablets scattered around the chamber walls, including a cracked one that requires finding a missing fragment through a hidden side passage. Use the photos to learn the ancient words inscribed on the tablets. Then, return to the central statue and place the photos in the correct sequence to form the phrase: “Heed The Lord’s Oath Protect The Secret Of the name.” Saying these words aloud in order triggers sand to pour from the statue and unlocks the next area, advancing the story. Careful exploration, photo documentation, and correct word order are key to solving this intricate puzzle.

As you explore the Resonance Chamber, start taking pictures of each of the Adamic tablets on the wall. After you snag the first couple, you’ll get a prompt to pull out Laura’s Journal. Do that – you have to trigger a cutscene before you can continue.

Once you get pictures of the tablets in the main room (there are four), face the statues and look to the left – you’ll find a low tunnel you can crawl into.

Crawl through, and you’ll find another curving tunnel. Use your lighter to light each brazier (really more of a cresset) and keep taking pictures of tablets. There are two more to find along the tunnel.

At the very end of the tunnel, grab the two-handed mace on the ground to smash through the wall on your right. Grab the Tablet Piece from the ground and head back into the main room.

Place the Tablet Piece into the broken tablet and snap a picture of the completed tablet.
Head to the central statue to find a table where you can spread out your pictures.
Resonance Chamber puzzle solution
To solve the Resonance Chamber puzzle in Indiana Jones and the Great Circle, first photograph six Adamic stone tablets scattered around the chamber, including one that is damaged and requires finding a missing fragment in a hidden side passage. Use a lighter to illuminate the dark corridor and retrieve the fragment, then restore the tablet. Lay out the six photos near the central statue and activate them in the correct order to have Indy speak the secret phrase: “Heed the Lord’s oath. Protect the secret of the name.” The precise order to select the photos is 2, 1, 4, 6, 3, and 5. Successfully doing this will unlock the chamber and allow progression in the game.

The six pictures that Indy lays out form two sentences. You have to touch each photo in order. If you screw up, you just have to start the sentences over. You’ll know you’re making progress from the six spouts of sand in the statue’s base – they’ll start flowing as you form your sentences.
The two sentences you’re trying to make are: “Heed” “The Lord’s” “Oath” and “Protect” “The secret” “Of the name.”
Once the Resonance Chamber puzzle is solved, you’ll fall into an Underground Cave System that will (eventually) lead you to the Light Chamber puzzle.
What secret techniques unlock the Resonance Chamber puzzle in Indiana Jones
The secret techniques to unlock the Resonance Chamber puzzle in Indiana Jones and the Great Circle involve a combination of exploration, photographic documentation, and linguistic decoding. First, you must photograph six Adamic tablets scattered throughout the chamber and a hidden tunnel, including a broken tablet that requires finding a missing fragment in a dark corridor accessed via a crawlspace. Use a sledgehammer or two-handed mace to break through fragile walls to access these hidden areas. Light braziers with your lighter to reveal tablets in the dark tunnel and keep photographing them. After collecting all tablet photos and restoring the broken tablet, place the photos on the central altar and recite the secret phrase formed by the inscriptions in the correct order:
“Heed the Lord’s Oath. Protect the secret of the name.”
Saying this phrase aloud activates the chamber’s mechanism, unlocking the next area.
What is the significance of photographing all Adamic tablets in the chamber
Photographing all the Adamic tablets in the Resonance Chamber is crucial because each photo captures a word inscribed in the ancient Adamic language, which is essential for solving the puzzle. Collecting images of all six tablets-including repairing and photographing a broken tablet-unlocks the ability to arrange these words into a secret phrase. This phrase, when spoken in the correct order at the altar, activates the chamber’s mechanism and allows progression in the quest. Thus, photographing the tablets is both a method of documenting the puzzle’s clues and a key step in triggering the next phase of the adventure.
