C457 Inverted formations

After taking in a deep breath, Fang Yunlong's figure flashed and carefully walked into the pitch black cave.

Once he entered the cave, Fang Yunlong only felt his vision darken, he could not see anything. Even with the Heaven's Eye Technique, he couldn't see anything clearly. What made Fang Yunlong frown even more was that the cave entrance behind him seemed to have disappeared without a trace