Theme of Lila's Journey

In a small, seemingly unremarkable town, a young girl named Lila discovers an ancient book hidden in her grandmother's attic. As she opens the book, she is transported into a world filled with mystical creatures and enchanting landscapes. The story follows Lila as she navigates this new world, learning valuable lessons about courage, friendship, and the importance of believing in oneself. During her journey, she confronts various challenges that test her character and resolve, ultimately leading to a climactic showdown with a dark sorceress who threatens both her world and the magical realm. The novel culminates with Lila returning home, transformed and empowered by her experiences.

What is the primary theme of this narrative?