Fool...
No man can kill me
Well, technically...
When I say “no man" I'm saying that no human creature can kill me.
But since Merry Just stabbed me with his magical ‘barrow-dagger*, my connection to Sauron has been broken and I’m no longer bound to the power of the ring, thus making me now morta
Вопрос же о росте назгулов у Толкина подробно не рассматривается, а значит оставляет простор для фантазии...