When the Knight Bus crashes through the darkness and screeches to a halt in front of him, it's the start of another far from ordinary year at Hogwarts for Harry Potter. Sirius Black, escaped mass-murderer and follower of Lord Voldemort, is on the run – and they say he is coming after Harry. In his first ever Divination class, Professor Trelawney sees an omen of death in Harry's tea leaves … But perhaps most terrifying of all are the Dementors patrolling the school grounds, with their soul-sucking kiss. - See more at: http://www.bloomsbury.com/uk/harry-potter-and-the-prisoner-of-azkaban-9781408855911/#sthash.p0xkyOAr.dpuf