"It was like watching a speeded-up film of a growing tree. A head was shooting upwards from the ground; limbs were sprouting; next moment, a man was standing where Scabbers had been, cringing and wringing his hands"
— Description of the spell[src]

This spell (incantation unknown) was an untransfiguration spell that returned an Animagus back into their human form.[1]


Black forcing Pettigrew to return to his human form

It manifested as a bright blue light and it might have needed to have been performed by more than one wizard. If performed on a non-animagus animal, the spell would have no effect and would not harm the animal in question.[1]


This spell was used in the spring of 1994 by Sirius Black and Remus Lupin to reveal Ronald Weasley's pet rat Scabbers as Peter Pettigrew in the Shrieking Shack, exposing his true hidden identity to Ron, Harry Potter and Hermione Granger.[1]

Known practitioners

Behind the scenes


Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Harry Potter and the Prisoner of Azkaban, Chapter 19 (The Servant of Lord Voldemort)
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