The Lowriders

These reputable merchants are known to be the only traders brave enough to travel the underground limestone tunnels that riddle Pronger Valley. They have done well for themselves by being the only traders able to connect to the Kingdom of Faktumberg to the north by braving the Crystalwalk Valley as well as the Kingdom of Smiletown far to the east by navigating underground rivers. This trade route - known as the Low Road - is the namesake of the Lowriders. 
The current leader of the Lowriders is Yaya Zyaz, a Quetzal who was exiled from his tribe for being born with black feathers.