The only bit that I am tripping over on is the last few words. They feel a bit like "and they all lived happily ever after". "Who wrote it and make a means" is to vague and lacks real action. Perhaps outline what motivate the original author, then it gives you something to resolve.
I like it. I recent saw a film about a priest that during confession is told he is going to be murder. The person in confession gives him 7 days (I think) to settle his affairs.
Is egocentric the best word to describe the writer. Nir immediately headed in a direction I didn't. I know some egocentric people that I could never describe as a prick. Unless the word is a good fit drop it till you find the perfect word.
Perhaps the writer is an innocent victim, the other author is obviously deranged.