And what request did the Santicorn have for me?
"It's time for the best part of Santicorn - making things!
Valker requests the following gift:
A summoning gone wrong has caused the sea level to rise significantly and almost destroyed civilization in the known world. Which being was responsible for such cataclysm, how are the standard cultures and/or races of your stereotypical fantasy setting dealing with the change and which factions are emerging in the wake of the disaster? Alternatively: there's only one island, and one city, left in the world. Tell me more about the city, who's inhabiting it and what prevents others to seize it."
I took on the second alternative - so Welcome to Bytlav, the Last City...