C4169 The Great Heart of Tranquil Heart

The sound of weeping, mellow and melodious, can't tell if it's a man or a woman crying, but it makes people's scalps tingle.

It was really strange for such a sound to suddenly appear in the silent dark underground palace.

No one dared to say another word. No one knew what kind of taboo existed in this place. The blood of the cultivator who died just now had already flowed all over the ground