"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 - it might refer to
Isengard and
Barad-dûr, or to
Minas Tirith and B; or Isengard and
Cirith Ungol. *) - (Letter #140)
*) In a subsequent letter to Rayner Unwin (no. 143),
Tolkien is more definite that the Two Towers are '
Orthanc and the
Tower of Cirith Ungol'. On the other hand, in his original design for the jacket of The Two Towers the Towers are certainly Orthanc and
Minas Morgul. Orthanc is shown as a black tower, three-homed (as seen in Pictures no. 27), and 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 (The Fellowship of
the Ring p. 257). Between the two towers a
Nazgûl flies.