The Ministry of Magic is defeated for defeat in battles with Voldemort. Even Muggles suffer from the second war - every day there are catastrophes, the causes of which are unknown to anyone. The Order of the Phoenix loses in battles with the Death Eaters its best wizards But in war, life goes on .. Harry, Ron, and Hermione, like all sixteen-year-olds, learn, go to parties, and fall in love. However, the danger is getting closer and closer. Despite Dumbledore's best efforts to protect the school, very strange events are taking place at Hogwarts. This time, Harry’s memory will reveal the greatest secret of the Dark Lord, and in order to win, Harry is forced to sacrifice the most expensive ... What side in this war will the mysterious Half-Blood Prince take?