According to Xia Xiaochan's description, this city of the dead should be the place where a king died.
As for sacrificing souls? The more Han Fei listened, the more he felt that it was a fantasy. He always felt that there was nothing good about sacrificing…
The sacrifice on the Steps into the Sea could basically be equivalent to a summoning ritual to summon the corresponding creatures.
The sacrificial technique that Yu Wendao invented was meant to possess others' bodies.
The King of the City of the Dead must have been forced too much back then and desperately needed power… That was why he sacrificed himself.
Han Fei said, "Doesn't it mean that… the king's corpse might still be in the dangerous place?"