Indiana Jones and the Great Circle walkthrough: How to complete The Secret of Giants Fieldwork

The Secret of Giants is a Fieldwork Quest in Indiana Jones and the Great Circle that tasks you with photographing 10 Strange Inscriptions scattered across Vatican City. Completing it contributes to the main storyline, unlocks the Path of Junia Achievement, and rewards you with an Ancient Relic.

Keep in mind that some of the inscription locations are tied to some main story missions, so you may need to time them to get the photographs much more effectively.

This guide explains everything you need to know about The Secret of Giants in Indiana Jones and the Great Circle.

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How to start and complete the Secret of Giants fieldwork in Indiana Jones and the Great Circle

Initiate the Indiana Jones and the Great Circle quest with the Cat Mummy main story mission (Image via Bethesda Softworks)

To begin The Secret of Giants, you must first get the camera in Indiana Jones and the Great Circle's The Stolen Cat Mummy main story quest.

Photograph the initial four Inscriptions as part of the main quest. Then, speak to Father Antonio and receive Crescenzo's map, which marks six additional Inscription locations.

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First Inscription

The first Inscription is located on Via di Belvedere's small garden. Look for it in the corner near a scaffold structure. This area may be familiar if you completed the A Free Spirit Mystery side quest.

Use your camera to photograph the Inscription.

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Second Inscription

The second Inscription is found near the Belvedere Courtyard fountain. If you have the appropriate disguise, you won’t have to worry about the patrolling guard.

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Use your whip to get to the Inscription (Image via Bethesda Softworks)

Third Inscription

The third Inscription is on the Belvedere Courtyard balcony. Climb the scaffolding behind the stage and use your whip to ascend to the balcony with the black-and-white checkered floor. Follow the floor to find the Inscription on the wall on the left and take a photo.

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Fourth Inscription

The fourth Inscription is on the Apostolic Palace rooftop overlooking the Borgia Courtyards. From the third Inscription, climb through a window into the Apostolic Palace and use your whip to swing across to the rooftop.

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Take all 10 photos to complete the fieldwork (Image via Bethesda Softworks)

Fifth Inscription

The fifth Inscription is near the Fountain of Confessions in the Vatican Gardens. Head to the top of the stairs southwest of the map.

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Sixth Inscription

The sixth Inscription is in the Blackshirt camp south of the map. Progress through The Stolen Cat Mummy to meet Gina. Use the zip line to the balcony and enter the camp through a wire fence. Defeat the guards to collect their uniform and key. Then, snap a photo of the Inscription near the door.

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Seventh Inscription

The seventh Inscription is in the Museum gardens. Begin the A Nun in Trouble side quest with Gina. The Inscription is at the top of the steps in the Museum’s external gardens.

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Eighth Inscription

The eighth Inscription is in the Excavation Site's top corner. Search the far right corner of the Excavation Site. At the top of the rubble, you will find your Inscription.

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Ninth Inscription

The ninth Inscription is in the Tower of Nicholas V Sewers. Obtain the Sewer Key during the Mad Priest Fieldwork quest.

Unlock the gate at the Tower of Nicholas V and follow the white paint markers through the sewers. Look for the Inscription near the end of the pathway and take a photo.

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10th Inscription

The 10th Inscription is in the Cellar near the Vatican City Post Office. Start A Savage Discovery Fieldwork quest and obtain the Cellar Key by defeating Giuseppe. Use the key to access the Cellar and photograph the Inscription in the corner of the room.

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After photographing all 10 Inscriptions, go back to Father Antonio and post the images on the noticeboard in the Apostolic Library. The Secret of Giants will then be marked as completed, and you will be rewarded with XP and an Ancient Relic. As mentioned earlier, finishing this Fieldwork Quest will also unlock the Path of Junia Achievement.