After leaving the tomb.

Master Changmei instructed Tang Fei, "Once you get the exquisite White Jade coffin out, blow up the tomb."

"Why is that?" Tang Fei was puzzled.

Master Changmei replied, "This is the ancestral tomb of the Long family. There's no need to keep it. I intend to sever the Long family's ancestral line and cut off their fortune."