Nether everywhere

Utterly shocked, Liam looked at his left hand in which black wisps of energy coiled around, both his arm and the egg that he was holding. 

He then stared at his right hand in which mana was surging, wrapping the herbs that he clutched tightly.

He could distinctly feel the two types of energies. They were different like hot and cold, sweet and sour, or night and day.

No, that was not it. They were not exactly opposing, but they were definitely different.

As Liam suddenly lost his concentration mulling over this, mana surged and burnt the herbs that he was holding in his palm to a crisp.

"Shit." He dropped the debris to the ground and quickly took out another bunch of herbs to keep feeding the egg.

After a few moments, small spots of light flew from the herbs to the egg again, and he breathed a sigh of relief.

"What is happening? Why now suddenly?" Liam leaned on the tunnel wall in exhaustion.