Black yin magnetic energy, black yin magnetic field!

That was what Xiang Shaoyun had comprehended so far. The black yin magnetic energy around him was too thick, so a black yin magnetic field was formed. That was why the moment he had entered the cave, the magnetic energy had destroyed his devilish energy barrier, forcing him to defend himself with the Nether Soul Dragon Headband.

Now that he had learned of the magnetic field, he had to comprehend the profundity behind it. Only then would he be able to safely stay in the cave. Through the Imperial Nether Domain's senses, he was able to see clearly the trajectory of each energy strand in the field. 

The black yin...