Sea of Dreams
Gnomes for the most part are transient. They travel the Lanes in what remains of their defense fleet after the elves crushed their kingdom and conquered their world for no good reason. Gnome Junkships can be found almost anywhere, but the main fleet is usually as far from elven space as possible.
400 years ago an elf entered a gnome village, injured and bleeding. He collapsed in the town square and the concerned gnomes did all they could to save him, but, alas, it was too late and he expired. Unfortunately this elf happened to be the Elven Emperor. Naturally the elves assumed they had killed him and began what would be the bloodiest war on record. The gnome kingdom was crushed, its worlds occupied, and its survivors scattered to the stars.