He wasn't in a hurry to leave.
He just stood by the Water Marsh refining his understanding and observations.
Chen Yue blinked, at first thinking Chen Mu intended to lay an ambush here, waiting for those from the various Sects exploring the Stone Cave below to emerge, and then extort them one by one, just like he had done with Guo Wen. Thus, she kept silent and stayed by his side.
Chen Mu indeed harbored such a thought, but it was mainly aimed at the Mysterious Mechanism Pavilion. Earlier, when he was below, he had been intentionally sensing the movement of people from the Mysterious Mechanism Pavilion. He would let others from the different Sects go for the time being, but if he caught someone from the Mysterious Mechanism Pavilion, they wouldn't escape death easily and would lose a layer of skin if they survived. He wouldn't let them retreat effortlessly.
Chen Mu always remembered his grudges.