The Two Towers is the second volume of J.R.R. Tolkiens high fantasy novel The Lord of the Rings. The title refers to two towers, but there has been some confusion over which towers are being referred to. Tolkien considered naming the two towers as Orthanc and Barad-dûr, Minas Tirith and Barad-dûr, or Orthanc and the Tower of Cirith Ungol. However, he later identified the pair as Minas Morgul and Orthanc.
In the novel, The Two Towers refers to Barad-dûr and Orthanc, Sauron’s stronghold in Mordor and Saruman's tower, respectively. However, there are other interpretations as well. Some argue that the two towers are Orthanc and Minas Morgul, the sickly green castle of the Witch-King of Angmar. Others suggest that the two towers are Minas Tirith and Barad-dûr.