They're ancle bitters and/or architects of destruction
Gnomes:
Plain Gnomes (grass plains): These nomadic littlefolk herd goats, yaks, and other wildlife across the lands, however steer clear of Orisias (xenophobic humans). These gnomes have a bardic fashion of history and are not related to Shadow Gnomes.
Soot Gnomes: Find me something small enough to fit in a hole that size, and strong enough to dig! The Soot Gnomes are brothers in picks to Deep Dwarves, their keen eyes and large noses are great for mining. Small groups/tribes of gnomes travel around cliffs and mountain areas, exploiting natural caves for resources.
Shadow Gnomes: to sum it up, these guys are nuts... One of the last few races still with the pre-apoc technology and arcanic arts the Shadow Gnomes caused the Mecha-Arcane disruption and locked off the realm to all external planes. Recent rumors of Shadow Gnomes re-emerging have begun to spread, this tightly kept secret has caused the Guild (secret Druid society that monitors both urban and rural events) to find reputable scouts and mercenaries to explore the rumored areas. On the Island of Bràser, in the north large towers have been developing, these techarcanic towers spread over a eternal twilight, blocking out sunlight and moonlight. These towers allow the Shadow gnomes to use their faded abilities of magic, but none the less these Shadow Gnomes are out to properly activate there monstrosity of a creation, laying dormant now for 4000 years (apocalyptic event, 4000 years ago ;P). Parts and key stones of power lay scattered about the lands.