After a long journey they had nearly reached Mount Doom but they found no way up the mountain. Then Sam took Frodo on his back, because Frodo could not go further for his ring had increased in weight that nearer they came to the mountain. When they had nearly the half way up suddenly Sam noticed a silent follower of them. Gollum had returned and now Sam wanted to kill him. But again Frodo felt sorry for him and so they only drove him away. When they reached the Crack of Doom Frodo could not cast the Ring in for the it had to much power over Frodo.
Here Frodo put the Ring on and declared him to be the new Lord of the Ring. This moment Sauron became aware of him and he immediately ordered his Nazgûl to stop his near doom and bring him the Ring. But it was too late. Suddenly Gollum appeared and he fought with the invisible Frodo for the Ring. Then he bit off Frodos finger with the Ring on it and in his joy he fell into the Crack and with him the Ring. And here the Ring ended at all.