Insidious Surveillance

Exploration Stage: Full Moon Tower
From: Mr. Black
Description: The mysterious tower visitor may just be a weirdo and worship werewolves. There is a monster club in town. Did you know that? But everything is under my supervision and no one comes here. No, wait, isn't that a hidden camera in that corner over there?
Completed: Just as I thought! It is quite a clever hidden camera. Apparently, the intruder must be using quality equipment to monitor the werewolf. This narrows the range of suspects. However, you may want to look for more evidence and find someone suspicious.