Frodo of the nine fingers and the Ring of Doom...

[spoken by the Minstrel of Gondor: It has its beginnings two ages past when Bilbo set forth to reclaim the dwarves' gold from the dragon, Smaug, and while on his quest, Bilbo stumbled into a deep, dank cave...]

When Bilbo found that shiny ring in Gollum's cave of gloom,
He never thought that it would turn into a Ring of Doom.
The dragon, Smaug, the spiders, too, the goblins, the elven king,
They came to know the power of the hobbit and his Ring.

Frodo of the nine fingers and the Ring of Doom.
It started with a Hobbit in Gollum's cave of gloom.

The power of the Ring it grew and Gandalf sat in thought.
He knew that it must be destroyed in fires where it was wrought.
For if in evil hands it fell the earth would know its end.
No force of arms would win the day.
No army could contend.

[Spoken by Gandalf: For evil flourished every where and lay on the land like a festering malignancy, There was one hope, though. In a distant land, the noble Aragorn, heir to the empty throne of Gondor, awaited with a small band to return and become king, but he could not triumph until the Ring was destroyed. So went the prophesy.]

Frodo of the nine fingers and the Ring of Doom.
Accepted a heavy burden for the fires to consume.

Frodo of the nine fingers and the Ring of Doom.
Why does he have nine fingers?
Where is the Ring of Doom?