The Return of the King (The Lord of the Rings, #3)

by J.R.R. Tolkien

Which reminds me: what’s become of my ring, Frodo, that you took away?’ ‘I have lost it, Bilbo dear,’ said Frodo. ‘I got rid of it, you know.’ ‘What a pity!’ said Bilbo. ‘I should have liked to see it again.