This is my review of Harry Potter and the prisoner of Azkaban. I would say this is my second favourite book until harry potter and the half blood prince came out.I love this book because Voldermort isn't the enemy in this book this is the only book that Harry does not have to face Voldermort in the end. This book introduces time travel which gave me a shock. Warning spoiler alert I love that Jk Rowling says in the beginning Sirius Black is the enemy where as in the end there is a twist that Peter Peticuf is the real enemy!