In both the book and the movie, it’s mentioned that Frodo will die at the end of his journey to destroy the ring. What exactly would he die of? Is there some strange danger on Mount Doom? I think it might be helpful that I’ve only read half of LOTR.
SPOILERS
He doesn’t literally die. It’s figurative.
You see, after the ring is destroied, Frodo returns to the Shire only to stay a short while before sailing away to undying lands. He longer was the man (well…hobbit) that he was, and he could not remain in the land that he worked so hard to save. His former self had died.
thanks
Well, in both the book and the movie, the Wise are saying that Frodo won’t survive the quest.
But that just shows what the Wise know. JRRT was a devout Catholic, and he had no trouble instilling a moment of Grace for Frodo, & hence the Wise are confounded.
Not that he doesn’t suffer, not that he doesn’t need to find healing in Avallonë. But Frodo Lives!
I believe it’s only in the movie … Galadriel says, “The quest will claim his life.” Which it does, but it doesn’t mean he dies.
In fact, since he gets to sail West to (?) Valinor, he’ll be immortal. Sam and Bilbo, on the other hand, stay behind and will probably die of old age.
No, Bilbo sails as well, taking his rightfull place as a Ringbearer.
Sam also sailed away to the West because he was a Ringbearer.
Going to the Undying Lands does not confer immortality. They’re called the Undying Lands because the immortals live there. Frodo, Bilbo, and Sam all will expire eventually even while living there. Even the Valar cannot take Eru’s Gift away from mortals.
Bilbo and Sam go West eventually. As do Legolas and Gimli. But not poor old Bill the Pony. It’s speciesism, I tells ya!
Orc overdose? Spider bait? Getting squished by Sauron? The general dangers inherent in hanging around inside an active volcano? They don’t call it Mount Doom for nuthin. They’re going to the center of power for the most powerful and malicious being left on Middle Earth. There are millions of flesh-eating, ravenous monsters with swords around every corner, to say nothing of Nazgul, giant spiders, and Eru knows what other hideous beasties, and that’s just inside Mordor itself. They also have to get there in the first place, which is pretty long odds all by itself. And, if by some fantastic chance they succeed, they still have to go back the way they came. There’s nothing mysterious about the dangers of Mount Doom: they’re pretty much like the dangers they face throughout the rest of the book, except bigger and more of them.
What if he went to Mount mild sence of discomfort instead?
ummm . .sense . .
There’s a BFG 9000 inside one of its secret rooms?
And there’s no way to keep from dying at the end of the first game. (That has annoyed me for years and years.)
Sure there is! Type IDBEHOLD followed by V, and then you’ll have 30 seconds of invulnerability – so when you teleport into the room with the imps and the “death floor” in it, you can blow them all away real quick-like with your rocket launcher (which won’t hurt you 'cause you’re invulnerable).
Of course, there isn’t any wall-switch on the level to tell the game you’re done, but still.
True. True. True. And… what about Tuor, then? 
Does JRRT say in some appendix that Sam sails to the west? The book ends with his finally arriving back at his house, having set the Shire right.
Yup, in the appendices it mentions that Sam sails west after his wife dies. (This is some sixty years after the events recounted in LOTR, mind you.)
I thought it was a family tradition thing that Sam sailed for Valinor. Let me check…
“Among them the tradition is handed down from Elanor (Sam’s daughter) that Samwise passed the Towers, and went to the Grey Havens, and passed over the Sea, last of the Ring-Bearers”.
-Appendix B
Sam is supposed to leave for the Sea and Valinor two years before Merry and Pippin go to Gondor to die- well, “spend what short years were left to them”.