The story follows the adventures of two young people, John and Mary, who are sent to a mysterious island by their uncle. On the island, they discover a strange race of elves who are living in a hidden kingdom. The elves are in danger of being enslaved by a powerful wizard, and John and Mary must help them to escape. The two children must use their wits and courage to outwit the wizard and his minions, and to save the elves from a terrible fate. Along the way, they discover secrets about the island and its inhabitants, and learn about the power of friendship and loyalty. In the end, they must make a difficult decision that will determine the fate of the elves and the island.
By Francis Stevens · First published 1923 · Genre: Fantasy, Adventure, Romance