I've only rarely come across invisibility magics in fantasy literature that work this way. Most of them just make you and everything you are carrying invisible, in the same way that size-affecting magics nearly always shrink clothes.
Philip Hibbs http://www.snark.freeserve.co.uk/ Opinions expressed may not even be my own, let alone those of any organisations, nations, species, or schools of thought to which I may be affiliated.
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