In 1938, the Oxford professor J.R.R. Tolkien published a bestselling book featuring wizards, elves, dwarves, kings, queens, and a curious creature for which the story is named: The Hobbit. The novel, which has sold more than 100 million copies since its publication, dramatically expanded the possibilities (and readership) of a genre that would come to be known as fantasy. Tolkien tells of a hobbit named Bilbo Baggins, whose utter indifference to adventure is upended by a visit from 13 hirsute dwarves and a wizard named Gandalf.

The dwarves explain to Bilbo that they once lived in a glorious kingdom inside a mighty mountain where the grandfather of their leader Thorin had reigned as king. There they had achieved renown for their talents with gold and jewels. One day, they tell Bilbo, a dragon attacked their mountain, stole their treasure, and left their kingdom in flames. The dwarves had to flee, dispersing throughout the kingdoms of “Middle Earth,” strangers in a strange land. Having left their homeland, they were forced to speak the languages of those among whom they lived, using their native tongue, “Khuzdul,” only among themselves. Yet they  never stopped dreaming of their kingdom, never stopped mourning their mountain. They sought to hire this hobbit to help them reclaim what was once theirs. The dwarves introduce this tale with a song, an elegy for their long-lost land: