Mysterious.

Yang Dao looked back around him and found that the whole city was covered with a tint of amber. There was no sun in the sky here, it was all below the water. His gaze fell on the floor below his feet. He realized that the floor was radiating heat and glow. He rubbed the floor with his feet and sensed the hardness of the floor. 

The guy understood that there was something beneath this place that gave off the heat and transformed the floor into a hard crystal-like surface. That said he walked forward. A few meters opposite the mass grave, there were buildings. He was curious to see some buildings here and decided to explore them. 

He did not relax his vigilance though. He was wearing a simple shirt and jeans when he came here so he stuffed the knife snatched from the previous attacker inside his sleeves as he kept walking forward. His gaze was scanning the whole place around him and his ears were focused on the sounds in the surroundings.