Adventure awaits in your own backyard.
10-year-old Arthur is living with his grandmother in a quiet country house.His grandfather has recently gone missing and he sees little of his parents. His grandmother entertains him by reading stories to him. One of these stories is about the friendship of the tall, Masai-like tribals Bogomatassalai and the Minimoys — tooth-sized, elfin beings living underground in the garden of his grandparents' house. According to these stories, the Minimoys hold a wondrous and expensive treasure of rubies given by the African tribe called the Bogomatassalai to Arthur's grandfather in gratitude for his help. Arthur has become enamoured with a picture of Selenia, princess of the Minimoys.