Okay so I think that he thinks the gem is a fake and it was planted so he's calm because he's waiting to see if he can figure out what's really going on. The little girl is a ghost and when she was alive she collected gems so her father (the professor) made an art piece dedicated to her so they think the gem (that he now thinks is fake) is mixed in with the art piece gems. *I might be wrong but this is what I got from it on first read
I think the girl is alive, the professor invented that lie bc he magically know that gem is important or he thinks is real(?)
Then if she was alive why was the professor crying in one chapter saying he missed her and she was standing right beside him watching him cry?
Can someone explain what is going on with the carrot gem? I read that a lil too fast and now I don’t even know what is going on, he lost the gem to a lil girl.. but how come there are so many fake gems? How come he is now not panicking about it?