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"If anyone fancies buying a Portable Swamp, as demonstrated upstairs, come to number ninety-three, Diagon Alley — Weasleys’ Wizarding Wheezes. Our new premises!"
Fred Weasley advertising this product, shortly before departing Hogwarts[src]

The Portable Swamp is a magical prank item that was created by Fred and George Weasley, as part of their Weasleys' Wizard Wheezes franchise.[1]

History

The product packaging

In 1996, Fred and George Weasley planted one of these items on the way to Dolores Umbridge's office. Once they fled Hogwarts to set up Weasleys' Wizard Wheezes in Diagon Alley, they left no instructions on how to remove the swamp, forcing Argus Filch to help students across it; although Harry Potter was certain that many of the able Professors of the school could easily remove it, they preferred to watch Umbridge struggle.[1]

Filius Flitwick later removed it after Umbridge was sacked as Headmistress at Hogwarts, leaving only a small patch. Although Flitwick claimed to have left it as it was "a good bit of magic", Ron Weasley believed it was actually left as a tribute to the twins.[2]

Behind the scenes

Appearances

Notes and references

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