William didn't know that this possibility was right. Something did indeed intervene in such a monster tide's advance. And that was something he'd never expect or imagine.
It was another monster, one that craved for upgrading itself to the higher realm. The moment the monster tide appeared, this monster woke up from its deep slumber, and started marching fast towards here with its fastest speed.
This monster came, but not from any area adjacent to the city. It was originally situated on the opposite side of it, in between the city and the Scorching Lands, hundreds of kilometres away from here.
It was the same scary bear monster which William stumbled across before. William never expected that and wouldn't know until a long time later.