Gol Algor
"...The train moved through a multitude of tunnels, only to emerge at dizzying heights and inclinations that made me worry if the tracks could possibly hold the train stable. After some time, I simply stopped looking out of the window to preserve my sanity.
Then I gradually became aware of an unearthly noise coming from a great distance. At first I though that some great, primordial beast such as the tarrasque had emerged from its age-old slumber, for surely nothing else could emit such a penetrating sound. But then I realised that this noise seemed far too regular to come from the throat of any beast, no matter how ancient and unnatural.
And then the train moved over another pass, and I finally saw the source of this noise: Kiturab the Clockwork City."
- Edmund Durnsten in: The Known Lands: Gol Algor, Avane Street Publishing (1419)