Though she is the eponymous character, her story role is often that of donor or damsel in distress. The player instead controls Link, the series’ central protagonist, and usually focuses on defeating Ganon (or Ganondorf), the series’ main antagonist. Many Zelda games adopt the classic princess-and-dragon premise of chivalric literature: Zelda is usually kidnapped or imprisoned by Ganon, prompting Link to come to her rescue. Some games in the series have emphasized Zelda’s magical abilities and importance to the functioning of Hyrule, demonstrating that she is more than capable of taking care of herself. In several games, she is one of the Sages, whose work is essential to defeating Ganon; in others, she adopts alternative personae in order to take a more active role in her kingdom; and in some, she is a self-sacrificing princess regnant. Zelda’s alter egos include the ninja Sheik in Ocarina of Time and the pirate Tetra in The Wind Waker and Phantom Hourglass.