insurmountable obstacle

Exploration Stage: Octopus Citadel
From: Violet
Description: I'll tell you what happened to us here after Black abandoned his men and fled to a safer area of town. First of all, we tried to send messages from the sky asking for help. Now that the fog has lifted, it shouldn't be too hard to find one of the messages we sent.
Completed: You found the message. We sent this into the fog, hoping someone would read it. The fog blocked all the signals coming from the equipment here, so we had no choice but to send the message this simple way. So we had to send the message this simple way.