City Excavator

Exploration Stage: Crash Site
From: Huntress
Description: Can you believe it? I met a drilling crew in town! In all my years in the sewers, I had never seen one before. I was caught off guard and almost passed it off as an odd looking resident, but upon closer inspection... you want to know where it was?
Completed: The driller is no longer here, but he was definitely here. A spent flare, two rounds and one unused. This could be put on anywhere, even in a dungeon. Why did the excavator decide to come to town?