Subtle details of disguise

Exploration Stage: Old Cottage
From: Mr. Goodman
Description: Clarissa and I have a common enemy. It is the "Shadow". I tried to protect her house because it was the Shadow's men who broke into it. Those looters may not have looked like "shadow" disciples, but that is because they were well disguised. See, look at the pendant I took from one of them.
Completed: This pendant, worn by someone posing as a looter, bears the symbol of the "shadow," a snake! Huh? The golden part is a little different? That's part of the disguise. Our enemies are very well prepared.