Lin Mu could see the things the three men had done.
There were plenty of people they had killed and it was a regular job for them. That was entirely the reason why they had come to the Desolate Blood Battlefield. They were here to kill unsuspecting and inexperienced before taking their fortune.
It wasn't anything uncommon, but these men were professional in this. They had been doing this for nearly a hundred years now and would even pick their targets beforehand. They would start by finding suitable people in the Middle Fort city and then tail them into the Desolate Blood battlefield.
As for whatever happened on the battlefield itself, it was not of concern to others. After all, death was common here and thousands of people died or went missing every month. Many times, it wasn't even known if someone died or if they were just lost.