A Hidden Treasure

Exploration Stage: Postal Dovecote
From: Mr. Black
Description: If the culprit thought I was spying, we’ll find out where to look for them by examining the pigeon’s stolen items. See this unique artifact?
Completed: You’re right - this artifact is a rare treasure from the Defenders’ times. I have only seen one like this, and that was in an archived sketch! The pigeons must’ve found it in the fog, as there are many curiosities hidden there.