Arthur & The Invisibles

In 1960, 10-year-old protagonist Arthur is living with his grandmother in a quiet country house. His grandfather Archibald has recently gone missing and he sees little of his parents. His grandmother entertains him by reading stories to him of his grandfather's adventures in Africa. One of these stories is about the friendship of the tall, Maasai-like tribe called the Bogo Matassalai with the Minimoys – tooth-sized, elfin beings they believe to be their counterparts.