Evidence Extracted

Exploration Stage: City Hall
From: Detective
Description: And so our investigation brings us to City Hall. It's so dark here! I can't see anything at all. It's as if someone is deliberately obstructing our investigation and trying to keep us from following the trail! How are we supposed to find anything in this darkness?!
Completed: A page with a note about the arrival in the city of a certain M.S... Who would need to tear this out of the Conductor's diary?