Lucy Pevensie, one of the main characters in C.S. Lewis’s The Chronicles of Narnia series, dies at the age of 17. This tragic event occurs in the final book, ‘The Last Battle.’ Lucy, along with her siblings and other characters, is involved in a train accident in England. However, in the world of Narnia, this accident leads them to Aslan’s Country, a heavenly realm where they live eternally. The age of 17 is significant as it marks the end of her earthly life but the beginning of her eternal journey in Aslan’s Country.