Harry Potter And The Prisoner Of Azkaban is written by K J Rowling and published in 1999. It is also the third book of the series Harry Potter.
In his third year, Harry grew tired of his Uncle and leave their house. He gets to know later that a vicious criminal, who escaped from Azkaban, is after him. But later Harry himself find out the truth that Sirius Black has nothing to do with his parents death.
The story deals with humans transforming into wolves and stuff. It is very good for children. I dont like this highly imaginative, childish story. I have done a serious mistake reading this book and recommending you not to do the same.