178 The North's Deadly Magical Forest (End) We're Leaving!

"What is it? Is it monsters?" I asked.

"Yeah. To be more exact, those are undead. The undead in this region possess dense ice mana that strengthens them further, but that's not the greatest concern. Look," The man motioned with his head.

I followed his gaze and saw that the corpses of the frost giants started to get enveloped by a dense mana of ice and death.

"T-They are turning into undead...?" I uttered in disbelief.

How? I know that it's irregular for that number of undead to exist here, so all of the creatures that die here will turn into an undead?