Koen Zuck's complexion was gloomy as water, he didn't flee, but rather looked at Yusuf Zuck with fierce light flashing in his eyes. However, his heart was also storming with shock, simply because Bryson Campbell was too terrifying. Slaughtering Earth Immortals was as easy and simple for him as slaughtering sheep or chickens. You have to understand that Bryson Campbell had only just advanced to the Nascent Soul stage, but how could a Nascent Soul be capable of killing an Earth Immortal?
Therefore, he couldn't understand it.
In fact, no one could understand it. They all felt like they were dreaming, feeling that the scenes that had unfolded before them were too unreal.