J.K. Rowling's fifth book, Harry Potter and the Order of the Phoenix Harry - review.

        Harry has begun to have very strange dreams about being inside the body or the object that Voldemort is possessing at that time.  Harry believes that these dreams are actually occurring in the real world.  Dumbledore can see that Harry is having these dreams and does not think that it is a good idea for them to continue.  This was mainly due to the fact that Dumbledore thinks that Voldemort might try and use this connection between Harry and Voldemort to lure Harry out of school and right into the enemy’s hands.  Therefore, Dumbledore assigns Professor Snape the job of teaching Harry occlumency.  Occlumency is an obscure branch of magic that can rid the mind of external penetration.  Skills in occlumency would stop the dreams that occurred when his mind was going through a lot of stress.  

        One of the dreams that Harry had, was one of his godfather, Sirius Black, being tortured by Voldemort.  Harry thought that his godfather was really captured and actually being tortured by Voldemort in the department of mysteries.  Harry thought that the only way to rescue Sirius was to go to the department of mysteries and find him.  Once Harry gets inside the department of mysteries, he goes straight to where Sirius was in his dream.  He then lifts a prophecy off a shelf and then Lord Voldemort comes in and starts to duel Harry.  Harry is about to give up when Dumbledore comes to the rescue and starts gaining an advantage over Voldemort.  Voldemort flees but the minister sees him and his existence is now public and the whole wizarding community is now aware that the dark wizard that they once thought dead had actually been alive for thirteen years.

        Harry goes back to school and is told the story of why Voldemort wanted to kill Harry as a baby.  Harry is very angry with Dumbledore for keeping the secret from him this long because if he had not then he would have been able to save many people from dieing.  In the end, Harry and his friends are back at Hogwarts and safe.  His godfather died dueling Voldemort and no one knows the whereabouts of Lord Voldemort.