The Mermen

The energy fluctuated, and the power surged even more. The mysterious hollow core surprised everyone. If the power within was given free rein to erupt, it could wipe out all lifeforms within a kilometer.

The energy and the power that the hollow core contained was more potent than what they had encountered at the Magic Tower in the mythical ruin. 

Su Wan looked closely at the crustal. She noticed that there were hundreds of thumb-sized crystals floating outside the perimeter of the huge twelve crystals.

They were spatial pearls. These probably belonged to the two-headed ogres. Su Wan took a deep breath to restrain her excitement at the discovery.

She turned and looked around the isolated space. There was no other sign of life. Everything was terrifyingly quiet.

"My Lord, Your Majesty, we didn't find any enemies around," reported Eliza.