StarrlightSims | Harry Potter and the Chamber of Secrets PS2 - Expelliarmus Skip Pt1 @starrlightsims6122 | Uploaded February 2024 | Updated October 2024, 2 hours ago.
Abuses Lag Clipping to get onto an unintended ledge, then another lag clip to land inside of the end area. (Note that the floor only seems to exist on the far side, so landing closer to the nearer side will send you down into a pit)