How we cite our quotes: (Book.Chapter.Paragraph).
Quote #10
"Frodo, Mr. Frodo!" he called. "Don't leave me here alone! It's your Sam calling. Don't go where I can't follow! Wake up, Mr. Frodo! O wake up, Frodo, me dear, me dear. Wake up!"
[…]
And then black despair came down on him, and Sam bowed to the ground, and drew his grey hood over his head, and night came into his heart, and he knew no more. (4.10.18-20)
Sam has never despaired in this novel, not once. Tolkien describes him as a fundamentally optimistic hobbit (4.3.13-4), and it's frequently his job in the story to pull Frodo's more melancholy mind away from dark thoughts. But the whole reason that he has come on this quest is to follow Frodo. Frodo is the entire motivation of Sam's presence here in this awful place. So Frodo's apparent death is a double blow. Not only does Sam think he has lost the master he loves, but he has also lost his primary purpose for coming to Mordor in the first place. Not good.