The summary of Harry Potter and Half-Blood Prince The sixth year at Hogwarts is the most abnormal school year for Harry Potter. The return of the Dark Lord, Voldemort, petrifies the Wizard world completely. Harry joins with Albus Dumbledore, the venerable headmaster of Hogwarts and they find themselves involved in a dangerous fight against Voldemort. During this venture, many secrets are revealed little by little, which are mentioned as the past of Lord Voldemort through Dumbledore’s Pensieve, or the way he knew how to make Horcruxes with the assistance of professor Horace Slughorn. However, the demise of the headmaster puts an end to this undertaking. Professor Dumbledore was assassinated by Snape Severus, which makes everybody believes that Snape is the betrayer. Harry feels heart-broken and decides to drop out of Hogwarts with Ron Weasley and Hermione Granger to complete Dumbledore’s last mission. That means Harry and his two friends, enter a new chapter of their school life. Apart from the agonizing incident, Harry has lots of exciting news. Getting the OWL (Ordinary Wizarding Level) results with flying colours and welcoming the present of a new Potions professor - Slughorn, Harry is still on his way to become an Auror. Harry is selected as the leader of Gryffindor’s Quidditch team and successfully guides his team to a splendid victory. Since then, he has many swoon-worthy compliments in Potions class thanks to the mysterious Advanced Potion - Making Book, which turns out to be the possession of Snape, whose nickname is ‘Half-Blood Prince’. During the his maturity, intricate romantic relationships arise between Ron and Hermione as well as Harry and Ginny, making the book more outstanding than its predecessors.