The fifth level of the Yin Ruins.
Fang Mo stood at the passage entrance and glanced back toward the fourth level. It had taken him only half a day to clear it.
He had done this deliberately!
This way, no one else could enter the fourth level, and his grandfather would surely have to leave.
It was not that he was heartless and refused to give his grandfather a chance. On the fourth level, he had discovered that even the weakest mutant beasts were at the peak of the Heaven Mastery Realm, while those in the transcendent realm were everywhere.
With their strength, his grandfather and the others would undoubtedly die if they entered. They would have virtually no chance at all.
Once they entered the fourth level, they could not retreat. He could not give his grandfather the chance to take such a risk.
He had slaughtered madly, without rest or pause, and finally cleared it in half a day.
Only after withdrawing his gaze from the passage did he have a chance to examine his surroundings. The environment was exactly the same, without any differences. However, this place was clearly closer to the inner region of the Yin Ruins. The spiritual energy of heaven and earth was even denser, several times greater than on the previous level.
Dark clouds blanketed the sky, with blood-colored lightning darting through them. They seemed like an enormous pot covering heaven and earth, weighing heavily on the heart.
Fang Mo was in no hurry to leave. He found a quiet spot beside the passage and began refining Primordial Spirit Fragments. He felt that his breakthrough was near. He needed to calm his mind and begin his push toward the true man realm.
He took out a pile of Primordial Spirit Fragments and began