C283
The sound was indeed Loong Xiaoyun's doing. He had already run a distance when he suddenly sensed Ma Shangdong and the other two stop at the same spot where Zhang Hanjie and Zheng Wuyin had left him.
In order to protect Zhang Hanjie and Zheng Wuyin, Loong Xiaoyun used his Claw of Dragon and smashed a huge boulder, purposely creating a big commotion