Minas Morgul
In letters to Rayner Unwin, Tolkien considered naming the two as Orthanc and Barad-dûr, Minas Tirith and Barad-dûr, or Orthanc and the Tower of Cirith Ungol. However, a month later, he wrote a note published at the end of "The Fellowship of the Ring", and later drew a cover illustration, both of which identified the pair as Minas Morgul and Orthanc. In the illustration, Orthanc is shown as a black tower, three-horned, with the sign of the White Hand beside it; Minas Morgul is a white tower, with a thin waning moon above it, in reference to its original name, Minas Ithil, the Tower of the Rising Moon. Between the two towers a Nazgûl flies.