Magic in Middle-earth

[Neithan]

And then there is their ability to move quietly and "disappear" (without the aid of any magical Ring) when they do not want to be seen. That too might be described as a magic of sorts.

I assume you got that idea from the prologue to LotR? Yes, I was going to point it out when I posted my revised summary of magic but you beat me to it.

By the way I will post the revised summary as soon as I have time. Which may be a while because it is going to be long and take quite a while to do.