J.K.Rowling’s "Harry Potter and the Half-Blood Prince"

Harry with Ron , Hermione and other friends together can solve all problems and beat the most horrible creatures and most evil persons in the world, but Professor Dumbledore, one of the most positive characters in this story, trusted to Severus Snape that he has left the dark side and now is the good one but he was not and killed him without thinking when it was necessary for Lord Voldemort. Some other supporting ideas are that it is not matter how you spell and say words (in book are jinx and curses) but how hard you trust to it. …