He Taozi was worried. Since Wu Yu had taken the initiative, he waved his hands and gestured for him to speak directly. 

Wu Yu said, "Looking at the whole city, this demon's only aim is to kill and retrieve hearts. It is not even interested in the valuables. So it is obvious that its aim is solely towards hearts. I'm not knowledgeable, so I'm not sure if anyone knows which demon focuses on taking hearts."

Gu Hongming smirked and said. "Wow, what an amazing discovery this is! It's such a simple logic that everyone knows of this already! The key is that no one has heard of such a demon!"

The others did not reply. Perhaps there really was no such demon.

Wu Yu ignored Gu Hongming and continued, "That means that this demon is an exception. He annihilated the whole city, not even showing mercy to one-year-old children. No one was left alive. He should not have been satisfied with just these actions. He likely still wants more! Hence, I guess that he will not only not escape and head towards the direction of the Endless Demon Seas, but change locations to create another disaster like the one in Qingsang City. We will need to monitor the surrounding few martial cultivator...