End the chain of cause and effect?

What does that mean?

Gou Yangba and Gou Yangtong were not stupid. They might have previously lost control of their emotions out of shock, but they immediately reacted when they heard those words. 

Terror struck them. The kid’s aura vanished from the cave, and a woman with supreme majesty walked out of that cave!

Could she be standing up for the kid?

Thinking of this, their blood ran cold, and they almost broke down. How could they have imagined that they would provoke such a supreme figure from just hunting down a teenager of the Heaven Ascension Stage?

“Elder, it’s a misunderstanding!” Gou Yangba broke out in cold sweat and begged for mercy. 

Swoosh!

But Gou Yangtong darted away. He could tell that it was useless to beg for...