Bottled Fog

Exploration Stage: Traveling Circus
From: Mr. Black
Description: So, the main props of the disappearance from the fog can didn’t give us any clues, which means that the solution lies in something else. I found the performers’ notebook. It says that the fog was "poured" into the can from huge bottles. Let’s find one and examine it.
Completed: So this is the bottle they used in the disappearing act? Hmm, there are no secrets in it either: no twist-off neck, no false bottom, and the glass is ordinary. Was it used to distract attention too?