"Knock knock!"
However, before Huangfu Yi could curse at that ghostly thing, the sound of knocking on the door came again from the darkness, this time very close, as if it was knocking from the skull itself.
Not only did Huangfu Yi hear it, but the Immortal Bone also suddenly turned its head, seemingly hearing it too,
"Did Lei Gong win..."
After a moment of silence, the men on the mural sighed in unison.
"Never mind, it's all the same."
So it raised its hand and flipped over its stone coffin.
With the eerie green glow emitted by the bones, Huangfu Yi clearly saw that there was a strange iron lump buried beneath the coffin.
"Si Ding"
Si... Ding?
Huangfu Yi had seen cauldrons before; they boiled demons in the big cauldron at the village entrance. But this lump didn't look like a meat stew pot; if anything, it resembled the word 'Ding', with a metal framework like a stand, supporting a black sphere like an 'eye'.
