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Bimetal alchemical thread

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Bimetal alchemical thread was a patented magical fibre invented by Dehoff. It was invisible to practitioners of the Dark Arts, and, as such, was used to make the protective product Hex-a-Gone. However, Hex-a-Gone had complicated instructions that had to be followed carefully, and could result in unintended home "hexidents" if used incorrectly.[1]


Notes and references

  1. Harry Potter Limited Edition - A Guide to the Graphic Arts Department: Posters, Prints, and Publications from the Harry Potter Films (see this image)