A pebble, barely a speck at this distance, shot up, flying straight toward Malfoy, hitting the broomstick just as Malfoy was pulling up to ascend to the topmost branches. The broomstick snapped in half with a loud crack. Malfoy tumbled off the back of the broom, still clutching the handle as he screamed, and fell into the tree, coming to a stop about two-thirds of the way up.