Wizet turned into another corridor and saw Filch, Mrs Norris, Fred, and George all there.
Filch hurried toward Fred and George. Mrs Norris's fur was standing on end as she arched her back at them, a continuous rumbling growl coming from her throat.
There was a puddle beneath Fred and George, and both of them were covered in quite a bit of foam.
The two tried to get up, but the moment they pushed themselves up on their arms, their palms suddenly slipped, sending them sprawling back into the puddle.
"So you've finally got what was coming to you!" Filch said breathlessly, glaring down at Fred and George.
"What kind of magic is this?" Fred said in astonishment, raising his hand and rubbing his fingers together. "It's so slippery... so slippery we can't even get up!"
"Didn't he just cast Scourgify?" George said, playing with the bubbles as well and blowing a string of them from his lips. "Is this a new function of Wizet's 'Fake Wand'?"
There was not the slightest trace of distress at being caught on their faces. Rather than having been caught, they looked more like they were playing around at an amusement park.
"That makes no sense..." Fred spread his hands, looking at the bubble film forming between his fingers. "We're the ones making the 'Fake Wands' now..."
"True..." George agreed. "Even we didn't know this 'Fake Wand'... could actually perform magic like this."
Hearing Fred and George say that, Filch cried out in shock, "What?"
He instinctively pulled out his wand and waved it in front of Fred and George. "Th-this... you made this? Why?"
Fred answered as though it were perfectly obvious, "We were bored..."
"Yeah!" George agreed. "Sometimes it's just the two of us on our nighttime wanderings, and it's unbearably boring!