This is the second book of the series and written by J.K Rowling.
In their second year at Hogwarts Harry, Ron and Hermione face even a more serious threat. This year Lord Voldemort comes back in a different form, a diary. There is a huge scary creature in the secret deep tunnels of Hogwarts which petrifies Hermione and kidnaps Rons sister Jinny. Harry and Ron go to save Jinny from the monster.
I didnt like this book as I didnt like the one before that. Fantasy doesnt work for me. I recommend you to read classics instead of reading this childish stories.