Wonderful points everyone
.
One more small detail to add about the plot, typically in a story after the climax the story will just fall and end with a resolution. It will rise with the conflict, at the height hit the climax, and then fall to the resolution.
In LOTR it rises to the climax (destruction of the ring), then falls with the french term (lal help me again
deneument, but then with the scouring it has another rise, another conflict, then another resolution. So the line sort of goes, up (conflict), height (climax), down (deneument), up (another conflict), down (resolution). And this goes along with
Lal's point about plot twists, some extra curveballs made by Tolkien.