At Hogwarts sky Harry is flying at high speed around the Hogwarts buildings The dragon cuts him off and whips him off his broom, he lands on the roof of Hogwarts, hanging on for dear life. The dragon is clambering across the roof, strewing tiles as it goes. Harry reaches his broom but it's stuck. He jerks it loose and lets go of the roof just in time before the dragon swipes at him. He falls a long way but regains control. He flies on to an area with a bridge, he flies through a gap in the bridge but the dragon crashes into it and falls into the water.