Obliging House

Exploration Stage: City Hall
From: Detective
Description: Fog thickens over City Hall, penetrating even locked doors and windows. It's hard to discern objects, only their outlines are visible. Citizens call this Silhouettes. And in this gloom, I see the outline of a mechanical man's head - hurry and find it.
Completed: A steel head was cleverly hidden inside a knight's helmet that was adorning the wall in City Hall. Did you notice the inscription on the back of the helmet? 'A head is a part of a body. Where there is one, another will be close by.' One more riddle, that old Collector was one crafty fellow.