City of Brass
In the City of Brass, gnomes have a special connection with the spirit world. They can see into it, with concentration, and can perceive invisible spirits. With practice and skill, they can even learn to trap and train spirits.
The City employs many gnomes in arcane magic jobs involving spirits. The gnomes toil away, programming frog spirits into little toy boats and training minor lightning bug spirits to glow on command for indoor lighting products. Many of the magitech items sold throughout the city are created by gnomes.