The One Ring and invisibility

[cesar.ewok]

Legate, I likewise believe that the Elven lords and the Maiar inhabited both worlds; but where exactly is it told?

And a question: wraith world = spirit world?

[Raynor]

Originally Posted by Legate

The only moment Sauron sensed the Ring was when Frodo claimed it as his own (in Mordor, what more, even in the place where it was forged).

Hm, I am not completely sure about that:

Originally Posted by The tower of Cirith Ungol

Without any clear purpose he drew out the Ring and put it on again. Immediately he felt the great burden of its weight, and felt afresh, but now more strong and urgent than ever, the malice of the Eye of Mordor, searching, trying to pierce the shadows that it had made for its own defence, but which now hindered it in its unquiet and doubt.

Originally Posted by cesar.ewok

Legate, I likewise believe that the Elven lords and the Maiar inhabited both worlds; but where exactly is it told?

Originally Posted by Many Meetings, FotR

And here in Rivendell there live still some of [Sauron]'s chief foes: the Elven-wise, lords of the Eldar from beyond the furthest seas. They do not fear the Ringwraiths, for those who have dwelt in the Blessed Realm live at once in both worlds, and against both the Seen and the Unseen they have great power.