The first thing to say is that not everyone will find OOTP better than the previous books. The tone is darker, Harry is very upset and feels different than the other books and character development is much stronger while plot twists and turns are down-played.But for me this is just an incredible book! The first two chapters are, in my opinion, the best two that JK Rowling has ever written. From there things slow a little bit but my interest did not waiver one time.We find out much more about the past of Sirius, Snape and Harry's own father James than we had done. Perhaps most importantly we find out Trelawney's first prediction and why Dumbledore has kept Harry in the dark up till now.Many questions are answered in this book but many are left open and, as it ends we wonder, now that the wizarding world is more united, what is the Dark Lord going to do about it? Will Harry fulfill his destiny or will Voldemort overcome him?And, on a lighter side, will Fred & George become the big kingpins on Diagon Alley, is Hermione wearing her Christmas present from Ron and what were there OWL results!On a practical note, those who do not have much experience of English slang might want to keep a British dictionary handy with this one - the book seems less "translated" than the others and much better for it.Finally, the wait was long but oh so worth it! 

Question: Is this book based on rumor of real story?
Answer: books