Secret Observer

Exploration Stage: Foggy Backstreet
From: Mr. Black
Description: We examined most of the Foggy Backstreet, but there are no traces of Carlos here. It's as if he vanished into thin fog. I also feel someone's eyes on the back of my head. Try to find the doors with peepholes without attracting attention.
Completed: Well done! So there's only one peephole - on the Pawnbroker's door. He's most likely watching us. Well, since the Pawnbroker is peeping on us, let's drop by on him. If he watches every passerby like this, then he must've seen Carlos.