Misc. Questions

[Marky Lazer]

Maybe it's interesting for anyone, but to provide you with the answer to my own question:

I can't think of any point where this is addressed directly, but I think it's possible to have a fairly good guess at the answer.

In Tolkien's universe, mortality is a special gift from Eru, and it's outside the power even of the Valar to remove that gift. If the Valar can't achieve this, then certainly it should be impossible for Sauron to make a mortal being into an immortal one. This ties in, I think, with Bilbo's comments about the long life granted him by the Ring - 'Why, I feel all thin, sort of stretched, if you know what I mean: like butter that has been scraped over too much bread.' (The Fellowship of the Ring I 1). In other words, his mortal lifespan has been unnaturally extended, but he's still a mortal being (as stated explicitly in Tolkien's letters).

I think the same effect must apply to the Nazgûl, too (and also Gollum, of course). The Rings of Power clearly granted a greatly extended lifespan to those under their power, but they seem to have remained essentially mortal.

I hope that's of some help.

Kind regards
Mark Fisher