"The Princess and the Goblin" is a children's fantasy novel written by George MacDonald. It tells the story of a young princess named Princess Irene who discovers a hidden world inhabited by mischievous creatures called goblins. These goblins threaten her kingdom, and Irene must find a way to protect her home. With the help of her magical friend, a mysterious grandmother, Irene learns about courage and friendship. The story emphasizes themes of bravery and the importance of trusting one's instincts. Ultimately, Irene's adventures lead her to confront the goblins and safeguard her kingdom from their mischief.