Wind chime made of human bones.

"That female ghost has been trying to break through the shield whatever it is, every time, I try to close my eyes, I will find her closer than before! Moreover, Second Madam didn't you say that the trouble was only till four in the morning? So, why is that female ghost still here? Shouldn't she have gone to hide in her shell or wherever she is staying? But instead, she is standing right in front of me with that crooked face of her!"

Song Yan was really angry and amused seeing how Assistant Xu was acting but when she took a look at the clock on the wall opposite her, she was surprised to find that it was really four in the morning and when she peered through her window, down in the parking lot —— it was just as Assistant Xu said, the female ghost was indeed standing still in front of the car in which Assistant Xu was hiding.