Dumbledore, Snape, and McGonagall Interrupt Moody's Attack on Harry
Pages 679-680
Just as Moody prepares to kill Harry, Dumbledore, Professor Snape, and Professor McGonagall burst into the office. Dumbledore uses a stunning spell to subdue Moody, saving Harry. Dumbledore's power and fury are on full display as he takes control of the situation, revealing that this man is not the real Alastor Moody.
