It was the eighth day of the two week time limit that was given to the leaders of this world by Xu Shan when something actually changed.
News spread that in a single day, multiple leaders of the invading forces were assassinated. The attack wasn't on one side either. Several high-ranking warriors from all four invading factions met their death at the places where they could've least expected it.
Following their deaths, all the cities where such incidents took place were sealed, but still the invading forces couldn't find the killers.
On the ninth day, things became even worse as one of the heirs from Four Clans was poisoned to death. For many citizens of this world, this news made them realize that something big was going on. The warriors were attacking the invaders.
Many wondered if they could actually force these invaders back. Although they were losing in frontal battles, their assassination was highly effective.