Flooded Archives - Returning for the Third Mural (Part 3)

You can go back the way you came, but fortunately you don't have to. Instead, move to the edge of the opening in the floor ahead on the left.

Jump down onto the wooden scaffolding in the room below.

Then jump over to a second, slightly lower scaffold where there's a container of cloth.

Drop to the floor to find a box of supplies and another cylindrical container with cloth and a few Byzantine coins. Then shoot the Greek fire container to blow out the door.

Exit this building to the part of the Archives you explored earlier. Return across the pool to the Greek Fire Depot Base Camp. If you missed any of the other collectibles in this area, get them now. Then use the camp to fast travel back to wherever you left off.