Datangjian

A cave-mysterious bead that can identify all things, no one has penetrated it for five hundred years. A judge's pen, an iron fan, a Tang straight knife, and an embroidery needle can be used to identify treasures, objects, and people's hearts. An incorruptible corpse was brought out from a piece of fake jade from the Warring States Period, and the incorruptible corpse was pursued all the way into Xuanyuan Pavilion - four people, four kinds of dismantling, pointing in the same direction