The Order of Giants is home to several collectibles for Indiana Jones to track down, including the Mithraic Artifacts. If you take the tunnel right, you’ll see several boxes with numbers on them. Miles ArtifactPater ArtifactLocation: The Mithraeum - 1st FloorWhen you enter the Mithraeum, you’ll see a room on your left that contains a large statue. Duck under the door to head into the puzzle room. Here’s how to solve the puzzle moving from left to right:Plate 1 - Medium weight- Medium weight Plate 2 - No weight- No weight Plate 3 - Heavy weight- Heavy weight Plate 4 - Medium weight- Medium weight Plate 5 - No weight- No weight Plate 6 - Light weight- Light weight Plate 7 - Light weightOnce you’ve solved the puzzle, look to your right.