Wait We Die?

"Well, at least I died being an icon," Sirus said. What will happen when friends and enemies from the past read books from the future with their kids? Oh, and they find out they die. Note: I'm going to change some scenes and add some scenes. Also, the humour will be gen z. I own nothing but the underlined text, bold text, and my OC(s). J.K Rowling (sadly) owns everything else.