Nestled between the towering cliffs of the Zorian plateau, lies a vast cavity that is wide enough to swallow an adult bull elephant with enough space to spare for a small herd of draft horses on either side. There you will find gold, an abundance of it. But what is that you say? That the natives tell you that it is a place of death and home to hideous monster that will devour you? Ignore the savages. They only seek to protect what they are too indolent to grab for themselves.
-A Khanate offical assuring a bunch of miners.
Somehow, someway, a band of gnomes learns how to be ninjas. In fine gnomish style, they open an academy to teach this art to other gnomes. Wacky Hijinks ensue. Or the gnomes become some of the finest assassins in the land. Or both.