Magic in Middle-earth is the use of supernatural power in J. R. R. Tolkien's fictional Middle-earth. Tolkien distinguishes ordinary magic from witchcraft, the latter always deceptive, stating that either type could be used for good or evil.

Númenor, also called Elenna-nórë or Westernesse, is a fictional place in J. R. R. Tolkien's writings. It was the kingdom occupying a large island to the west of Middle-earth, the main setting of Tolkien's writings, and was the greatest civilization of Men. However, after centuries of prosperity many of the inhabitants ceased to worship the One God, Eru Ilúvatar, and rebelled against the Valar, resulting in the destruction of the island and the death of most of its people. Tolkien intended Númenor to allude to the legendary Atlantis. Commentators have noted that the destruction of Númenor echoes the Biblical stories of the fall of man and the destruction of Sodom and Gomorrah, and John Milton's Paradise Lost.