Missing verse; help me here

[zxcvbn]

While reading Unfinished Tales I came upon this poem that deals with relation of the Valar to Middle-earth in the Third Age(a topic I'm very curious about). However it terminates at the middle, with a note from Christopher Tolkien.

Will thou learn the lore / that was long secret
of the Five that came / from a far country?
One only returned. / Others never again
under Men's dominion / Middle-earth shall seek
until Dagor Dagorath / and the Doom cometh.
How hast thou heard it: / the hidden counsel of the Lord of the West / in the land of Aman?
The long roads are lost / that led thither,
and to mortal Men / Manwë speaks not.
From the West–that–was / a wind bore it
to the sleeper's ear, / in the silences
under night-shadow, / when news is brought
from lands forgotten / and lost ages
over seas of years / to the searching thought.
Not all are forgotten / by the Elder King.
Sauron he saw / at a slow menace ....

There is much here that bears on the larger question of the concern of Manwë and the Valar with the fate of Middle-earth after the Downfall of Númenor, which must fall quite outside the scope of this book.From Unfinished Tales Part Four: II The Istari

I've combed the HoME series for this poem but can't find it anywhere. Can any of the uber-fans here help me find the missing lines of the verse?

[The Might]

I don't know if this isn't the whole poem?

[zxcvbn]

No. The '...' at the end followed by Christopher's comment indicates that he has omitted that part. Plus there's no mention of Numenor in those lines.

[Lord Gothmog]

It may well be all of the poem that JRRT ever wrote. In UT the poem is introduced by this line refering to a paragraph on Gandlaf:

This is followed by sixteen lines of a poem in alliterative verse:

JRRT left many poems and stories in such state. So the '...' probably is CT's way of saying that the poem was unfinished as there seems to be no other indication of CT omiting any of it.