Boo! Scared?

Exploration Stage: Octopus Citadel
From: Vera
Description: Stop! See the foggy silhouette at the end of the street? This may be a foggy mirage or the one who left the "Follow me" note. If it’s the former, I know how to deal with it, and if it’s the latter... Let’s get closer to the foggy silhouette and say hi.
Completed: Hmm, it seems I was wrong. The foggy silhouette we found isn’t a mirage or a living creature. It’s more like an energy scarecrow or an elemental. I’m getting a really bad feeling about this. Let’s quickly find the one who sent the note and return to the scavengers’ den.