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|"Are you a wizard or not?"
The title of this article is conjectural. Although it is based on canonical information, the actual name is conjecture and may be supplanted at any time by additional information released from canonical sources. If this occurs, please move this page to the appropriate title.
This was a spell used to propel the Hogwarts boats to the castle's Boathouse, which is located off the Black Lake. It may also have been the spell that Rubeus Hagrid used to propel the rowboat that he used to take Harry from the Hut-on-the-Rock back to the mainland in 1991.