<P> The Lord of the Rings is composed of six "books", aside from an introduction, a prologue and six appendices . The novel was originally published as three separate volumes due to post-World War II paper shortages and size and price considerations . The Two Towers covers Books III and IV . </P> <P> Tolkien wrote, "The Two Towers gets as near as possible to finding a title to cover the widely divergent Books 3 and 4; and can be left ambiguous ." At this stage he planned to title the individual books . The proposed title for Book III was The Treason of Isengard . Book IV was titled The Journey of the Ringbearers or The Ring Goes East . The titles The Treason of Isengard and The Ring Goes East were used in the Millennium edition . </P> <P> 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 . </P> <P> As Aragorn searches for Frodo, he suddenly hears Boromir's horn . Aragorn finds Boromir mortally wounded by arrows, sitting with his back against a great tree, surrounded by many slain orcs . Before Boromir dies, Aragorn learns that Saruman's Uruk - hai soldiers have kidnapped some of the hobbits, in spite of his efforts to defend them, that Frodo had vanished after Boromir had attempted to take the Ring from him and that he truly regretted his actions . In his last moments, Boromir charges Aragorn with defending Minas Tirith from Sauron . With Legolas and Gimli, who had been fighting Orcs by themselves, Aragorn pays his last tributes to Boromir and sends him down the Great River Anduin on a funeral boat, the usual methods of burial being impractical . Aragorn, Legolas, and Gimli later resolve to follow the Uruk - hai captors and save Merry and Pippin . </P>

What were the names of the two towers