Whoosh!
There was tension in Dudian's heart. After all the splitter could sense his smell and turn back to kill him at any time. It would be almost impossible to escape at that sitation. But he had the courage to track down the splitter as there was another point which he took into the account. Splitter would be afraid of the unknown enemy that had hurt it. And it would know that unknown enemy was in the direction of the giant wall. So there was a very rare chance for it to turn back.
Moreover Dudian didn't have to worry about encountering other monsters. Splitter was the overlord of this area. The monsters that sensed its smell would have nothing but fear.
Dudian didn't encounter other monster after thirty kilometers of tracking. He knew that the monsters around this area were nothing but snack for splitter but he didn't expect that there will be such an after effect.