Harry Potter and the prisoner of Azkaban, Rowling, Joanne K.

Before Harry potter could attend his third year at ’Hogwarts School of Witchcraft and Wizardry’ (hsww), He has to stay the summer holidays with the Dursleys. Because ‘the-one-who-must-not-be-named’ (Voldemort) killed Harry’s parents Harry had to live with his uncle Vernon, aunt Petunia and his spoilt nephew Dudley. But because of a magical accident Harry finds himself whole alone on the street with his suitcases. Fortunately ‘the knight bus’ gives him a lift to ‘the Leaky cauldron‘(a café for wizards and witches). Then a bit later he goes to hsww where he also meets his friends again from ‘griffindor’. But then he hears that a man named Sirius black has escaped from Azkaban and is trying to kill him, so the dementors(