Flash of a Comet

Exploration Stage: Foggy Backstreet
From: Rayden Storke
Description: So... Vera’s call sign is "Comet," right? Carlos called his daughter that since she was a little girl. Lucas, in turn, called his sister "Flash" for her noisy experiments. A reminder of this may be a clue to help find Vera’s hideout. Don’t you think that the root symbol over there looks like the alchemical sign of sulfur?
Completed: It really is the symbol of sulfur woven from strange roots! Maybe we’re starting to get lucky at last? Look, the sign is slightly rotated. I think it’s indicating a direction. Let’s follow it!