"The Two Towers" by J.R.R. Tolkien follows the adventures of the individual members of the Fellowship of the Ring after they broke up at the end of the first book in the trilogy. Frodo, the ring bearer, and Sam, his friend, continue their journey to the heart of Mordor to destroy the ring of power. Along the way, Sam grows in his character to become a valiant defender of Frodo as the ring continues to take control of his mind. Merry and Pippin, the other hobbits who were part of the fellowship, discover their warrior instincts as they help the Ents (tree-people) defeat their enemy. Finally, Aragorn, Legolas, and Gimli continue defending Middle Earth along with the Riders of Rohan and Gandalf, who has returned from his challenging ordeal changed.