Lucy Pevensie is the first Pevensie sibling to enter Narnia in C.S. Lewis’s series.
In The Lion, the Witch and the Wardrobe, Lucy discovers a passage through an old wardrobe while playing hide-and-seek. She steps into a snowy wood and meets Mr. Tumnus, a faun who lives in Narnia. When she returns, her siblings initially doubt her account.
Lucy’s early encounter establishes a central pattern in the novel: the youngest child sees and accepts a reality that the others cannot yet perceive. Edmund later enters Narnia as well, and eventually Peter and Susan follow, bringing all four siblings into the conflict involving Aslan and the White Witch.
Lucy remains an important Narnia character beyond the first book. She appears in several adventures and is consistently associated with courage, trust, perception, and loyalty. Her name also echoes the Latin word for light, though the novel’s events—not a stated wordplay—define her role.