In Assassin's Creed Valhalla Siege of Paris, you can explore Roman Excavations. They are part of a certain whole that will lead you to treasure. On this page of our guide you will learn the locations of excavation sites in the Melunois region.
Roman Excavations can be found at the Diodurum Ruins.
To get to the excavation site, you must enter a cave. It is located underwater. Jump into a small pond that will allow you to head further. The underwater path is very straightforward and there are no turns or blockades.
Once you are standing on stable ground, you will see bars behind which is a passage covered in debris. You can open it right away. However, you can also do it later if you prefer. Jump in the water and continue swimming forward.
Your have to destroy the cluttered wall. You can do this with the flammable jugs or with the special skill called the Incendiary Powder Trap.
The secret is on the table, among the many documents. You will be able to spot it without issues, because it's a different color than its surroundings.