No one has ever been clear about how vast the territory of the Southern Barbarians has been since ancient times. Some say there are a million great mountains, others say it is the end of the continent, with a land ten times larger than the Central Plains lying beyond.
This claim has never been confirmed but has always existed because that's how it has been throughout the history of the Southern Barbarians. Every year, there are people who can't survive and are willing to take a chance to cross mountains and ridges in search of new hope. Although many, many will die, historically, there have indeed been many fortunate people who found new land and then established a new Barbarian state!
At this moment, Ma Yunzhang and his group were among the refugees fleeing across the great mountains.