Primarily because the Beast King had been killed, leaving the Monster Beasts at a complete loss as to whether they should continue the attack.
Moreover, a number of Monster Beasts had already been terrified out of their wits. Previously, the Beast King’s intimidating presence had kept them in check, but now that the Beast King was dead, there was no one left to restrain them.
Consequently, the Monster Beasts began to fall back in droves, while those behind them kept pressing forward. The collision between the two tides directly triggered a massive stampede.
Chapter 690