Harry Potter and the Prisoner of Azkaban - Pg 32

He had the Invisibility Cloak he had inherited from his father---what if he bewitched the trunk to make it feather-light, tied it to his broomstick, covered himself in the cloak, and flew to London? Then he could get the rest of his money out of his vault and.. begin his life as an outcast. It was a horrible prospect, but he couldn't sit on this wall forever, or he'd find himself trying to explain to Muggle police why he was out in the dead of night with a trunkful of spellbooks and a broomstick.