Bab 600: Side Mission: 4

Unknown place, inside a dark space, rune symbols suddenly lit on the floor, illuminating the entire area, a ten cubic meter wide stone room. 

In the center of this room was a formation engraved filled with ancient symbols, which were now lit in bright light. 

At this moment, a cloaked figure suddenly appeared in the middle of this formation like a ghost before those symbols slowly turned back to their dormant state as darkness and silence returned. 

After an unknown time, two dark blue pupils suddenly glowed in this dark space as a confused voice groaned, "Where am I?!" 

It was Ace's voice!

Ace could clearly see despite the darkness as he saw a stone ceiling in a daze before his eyes became clear and turned icy cold when he remembered the words of Demon Ancestor.