Follow through the story up through Frodo throwing the Ring into Mount Doom. The climax has finished; they're running down the mountain. Frodo gets hit by something, a cracked boulder. He's mortally wounded. Sam runs to him, still angry with himself for having to hurt his master and angry with Frodo for making him hurt him. But now the time has come to forgive everything.

'It's all my fault,' thought Sam, 'I never should have let him take on a task so big, now it's too late. Oh, he's got to be all right, he has to.'

Frodo fell to the ground, pieces of the rock stuck in various parts of his body.

Sam sprinted to him, worried for Frodo and angry with himself for ever being mad at him. Right now he needed to take of Mr. Frodo, see that the wounds are fixed, Frodo had to live, they had come this far---

Sam reached Frodo's side. One big shard was sticking out of his stomach and another out of his leg. "Mr. Frodo! Mr. Frodo, don't worry, I'll take care of it. Just hold on, don't you go leavin' your Sam..." Frodo could feel so much pain: having lost his love, the One Ring, and now his life, and his best friend, his Samwise. No, he had to live.
Sam gently pulled the shard out of Frodo's stomach, pushing down hard on the hole left in his skin with one hand, the other clutching his master's hand. "You're going to live, Mr. Frodo, you've got to---"

"Sam," Frodo gasped. 'He blames himself for all that's happened to me. Poor Sam!' he thought. Suddenly his eyes rolled back, like they did when he was being tempted by the ring. Soon they were looking at the vexed comrade beside him again.

"Hush now, don't go wastin' any breath," Sam said as he removed other pieces from Frodo's body.

"Sam, it--it w...was never yo...your fault." Frodo was gagging on his own blood, and could barely talk from that and the excruciating pain, the burn running through his head and coursing all through his body.

"Hush, it'll be all right, won't it..."

Frodo had to get Sam to listen. He lightly rubbed Sam's hand with his thumb, trying to get his friend to pay attention to his words. It worked. Sam looked at his master's face, but still pressed on the major wounds.

"It was...it was n-never...your fault. And th-thank...thank you Sam."

Frodo's eyes rolled back again. Sam cradled the hobbit's dark head. Tears spilled freely now; he knew he couldn't save his friend.

"No. Th-thank you. I'll be--be seeing you, Frodo."

Frodo smiled as best he could and slipped away.

Sam looked at the lifeless blue eyes one long last time, then gingerly closed them.

And he knew Frodo was now in Fate's hands. Just as he had always been.