The night before the unfortunate events of IronClad Alley, Major Drake gave me 2 items that Dahl provided to him so that I could investigate them fully.
The second was a map of the world that seems to track the Fall, and the disasters that occurred just before it.
Scans show that the map is definitely pre fall in origin.
Earthquakes, sinkholes, tidal waves, plagues, acid rain, crop failures are all noted with dates.
A horrific death toll must have resulted.
A place called Russia is labelled as having the source of Hive which I believe fits in with things other people have found.
As always the map is ready to look at during normal office hours and will be available for anyone to examine during the next surface mission.
Senior Minster Sally Fields.