Harry drew his wand, and pointed it at the ceiling. "Lord Malfoy commands that Malfoy Manor be sealed. Nobody inside can leave by any physical means—windows are unbreakable, walls are indestructible, and exterior doors are indestructible and cannot be unlocked. Nobody inside can leave by magical means—travel by Floo, by Portkey and by Apparation is denied. For the next hour, the Malfoy wards are deadly to everyone outside the grounds who tries to enter the house or grounds to rescue anyone inside the house. So mote it be."