Through Yellow Springs Dragon Robe's Vision, Gu Xi could clearly sense that all the Earth Veins and Spirit Veins around White Ghost Mountain had been handled this way.
And the materials they used to fill the Earth Veins were skullcaps and portions of scalp.
Looking at the city before him, which could house at least three hundred thousand people, Gu Xi could not help wondering where all those skullcaps had come from.
"There are two ways to get to Ghost Breath City. One is to take a dedicated train from the train station within the domain.
"The other is to rent a car and drive there yourself. Neither way is particularly far.
"It is only a little over three hours to Ghost Breath City."
Listening to Tang Shuang's introduction, Gu Xi suddenly asked a question.
"How long would it take if I rode a mount there myself?"
"Ha, seventeen days, probably."
Tang Shuang thought for a moment. "I only know the general situation. If you want to know the exact time, then after you enroll in Underworld University, you can apply for the Yin Underworld Study Tour.
"That is an opportunity to travel through the Yin Underworld Realm.
"At that time, you will rely entirely on mounts to travel through the Yin Underworld Realm.
"I remember that the player who took the longest spent a full twenty-one years.
"But he traveled entirely on foot and checked in at every single location.
"Because of that, when he finally reached level 40, there were no restrictions on his advancement. As long as he had enough experience, he could pass it in a single leap.
"You could say that he traded those twenty-one years for the best possible future."
Hearing this, Gu Xi could not help sighing. It seemed there were gifted people