Nobody business

“I will tell you a story that nobody knows.”
“If nobody knows it, then how can you tell it?”
“Because I know it.”
“Then you are nobody”
“Well, maybe that’s true, for I come from nowhere”
“You are the witches white screen and the cobweb of light”
“That I am but not yet the whole thing”
“Now tell me that story that nobody knows”
“But then you will also become nobody”
“That’s okay, I am used to it”
“Then let’s start”
“Wait, are you sure nobody’s overhearing?”
“That I am sure for we both are there”