The Yin Soldier Camp Board barged straight across the Ancient Battlefield without running into any more trouble. All the Long-Haired Ghost Soldiers were fighting over the Ritual Food; none paid it any attention.
It passed smoothly through the Ancient Battlefield and finally reached the deepest part of the Ghost Domain beneath Yin-Yang Mountain.
At the very heart of the Ghost Domain lay a stretch of rolling hills. They were not particularly high, but they marked the domain's end.
The Ancient Battlefield where the Long-Haired Ghost Soldiers gathered lay in a valley embraced by those hills.
"The Ghost Gate must be somewhere among these low hills..."
Indeed, Tang Changsheng had come this time intending to pass through the Ghost Gate and enter the Netherworld.
The hills were not very extensive. Near the heart of one of them, he spotted a cave that had largely collapsed.
"This should be the Ghost Gate. I didn't expect so much of it to have collapsed. I wonder if we can still get through?"
Looking closely, he saw rocks of every size that had rolled down from the hilltop and blocked the entrance.
The cave mouth, originally more than five meters wide, had been reduced to less than half that width.
"Hm... What's this?" A beam of light sprang from the Yin Soldier Camp Board and swept across the ground, drawing a fist-sized stone into the Heroic Soul's hand.
The stone was remarkably light and blackish, somewhat like coal, but deep within it lurked an odd, somber darkness.
Most striking of all, it weighed perhaps less than a tenth as much as an ordinary stone.
"That's Netherworld Stone. Nothing special. It's a little rare, but it's no use for anything except building houses!" Yuan Wu explained without concern. After being locked in the Ghost Prison for