C.S. Lewis names the boy transformed into a dragon in The Voyage of the Dawn Treader Eustace Scrubb. Eustace is introduced as an unpleasant, self-important cousin of Edmund and Lucy Pevensie.
After entering Narnia, Eustace discovers a dragon’s hoard and greedily claims treasure. He then becomes a dragon himself, an experience that forces him to confront the selfishness and isolation that shaped his behavior. Aslan helps him return to human form, making the episode a major turning point in his character.
Eustace later becomes a more sympathetic and courageous figure. His transformation is therefore more than a fantasy spectacle: it changes how he understands himself and how the other characters see him. Lewis revisits Eustace in The Silver Chair, where he helps introduce Jill Pole to Narnia.
The name “Eustace Scrubb” is often confused with Prince Caspian or Rilian, who are important Narnian characters but are not the transformed boy.