C442 grayish-black dental impression

When the wave of pain came from the back of my hand, Mr. Wu, who was behind me, shouted loudly as if he had gone mad:

"Your hand is going to break! Your flesh and blood is going to be eaten by it! Someone is going to die here! Someone help me! I'm not going to say a word! I'm not going to say a word! Don't come over here and hurt me!"

When the Mr. Wu was going crazy