Hidden Clues

Exploration Stage: Atelier Delamode
From: Carlos Light
Description: If the city wants us to help wanderers find dangerous artifacts, we must do our best too. The map Lucas found led us to a corner of the city. There must be other clues hidden somewhere. Let's find them!
Completed: How did you see this secret decorative plaque? This was used by the defenders as a secret sign to place fellow troops. What do the numbers on this plaque mean? Is it a house or street number? We need to find other clues as well.