that starts the hero on his journey. According to Campbell, the hero at first refuses the call to adventure, but a mentor appears who helps them and they decide to 'cross the threshold' and travel into the 'special world' where the adventure happens. The next stage consists of passing tests, fighting enemies and meeting friends as the hero prepares to face their biggest challenge. For Luke the mentor is, of course, Obi-Wan, the friends are Han Solo and the robots R2D2 and C3PO and the enemy is Darth Vader inside the special world of the Death Star. Next, the hero overcomes obstacles on the way to facing their greatest challenge. There often comes a moment when they face death or loss and that experience gives them the strength to finally defeat the enemy. Luke loses his mentor when he sees Darth Vader kill Obi-Wan, which helps him find the strength he needs later on. When heroes succeed, they return from the special world, changed by their experiences forever. Luke's change comes when he remembers Obi-Wan saying, 'Use the force', and he uses it to help him aim his laser into the heart of the Death Star. Luke takes his first steps to becoming a Jedi, and the hero myth restarts in The Return of the Jedi, except this time his mentor is Yoda.