Harry potter becomes hot favourite when one is done with the first 2 books. It is rather getting more anxious subsequently.
So it is Harry Potter again with the Prisoner from the Azkaban.
Harry Potter is now more famous in School and is known for doing various tasks. It is Sirius Black who is the prisoner and has escaped from the Prison and is in search of Harry Potter. He is considered the murderer, but is actually innocent. And is way different and is against the Black Magic and their followers, of the'you know who' . So he has arrived to save Harry Potter from the dark magic.
The story has turned more interesting when, it is Professor Snape, who reveals various secrets of the members and he himself is a part of it. It is the pensieve, that is helping in revealing all the history.
The book is depicting the emotional life in Harry when he learns about his parents.
This makes the book more interesting.