who blew up the bridge in harry potter
Harry Potter and the Half-Blood Prince (film) Lord Voldemort is tightening his grip on both the wizarding and Muggle worlds, kidnapping Ollivander from Diagon Alley and destroying the Millennium Bridge. After the Malfoy family is disgraced when Lucius is apprehended and sent to Azkaban for his involvement with the Death Eaters, Voldemort chooses Draco to carry out a secret mission at Hogwarts. Bellatrix Lestrange and Narcissa Malfoy, Draco's mother, seek help from Severus Snape, who claims to have been acting as a mole within the Order of the Phoenix all along. Snape makes an Unbreakable Vow with Narcissa to protect Draco and fulfill the assignment if he fails.