"Ladies and gentlemen! What an extraordinary moment this is! The perfect moment for me to make a little announcement I've been sitting on for some time ... I have great pleasure and pride in announcing that this September, I will be taking up the post of Defense Against the Dark Arts teacher at Hogwarts School of Witchcraft and Wizardry!""
-- Gilderoy Lockhart (CS4)
Harry, Hermione, and the Weasleys visit Flourish and Blotts to buy school books. There they discover that Gilderoy Lockhart is signing his new book, Magical Me. When Lockhart spots Harry, he drags the boy up in front of the camera with him and announces the crowd that he will be the new Defence Against the Dark Arts teacher at Hogwarts for the coming year. After Harry escapes from the spotlight, Lucius Malfoy and Arthur Weasley get into a fight. Lucius uses the moment to sneak the Diary into Ginny’s cauldron.