Don't the Nazgul have some kind of armour on under their robes? Cause when the witchking is reaching for the ring at Weathertop, he's got some kind of glove thing on hasn't he? So would they be invisible completely without their robes, or just a pair of floating hands. Maybe they didn't have gloves in the book. I can't remember.
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'This ring, no other is made by the elves,
who'd pawn their own mother to grab it themselves,'
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