"The Disillusionment Charm should last a few hours, or maybe less; either way, the effect will gradually fade, so pay attention to any changes in yourselves," Albert reminded Fred as he cast the charm on him. "If the spell wears off and you get caught, don't give me away."
"I have confidence in you. After all, you even dared to use it on yourself." Fred didn't take it to heart. In his opinion, the fact that Albert dared to use it on himself meant the spell's effectiveness was guaranteed.
"Filch is awake, sure enough. He's up and getting ready to catch people," George, who had been staring at the Marauder's Map the whole time, announced as soon as he saw Filch spring into action.
Chapter 46