Young Rupert, with an unquenchable thirst for knowledge and experience, has been raised in complete isolation from the world by his enigmatic grandparents. His life takes an extraordinary turn when a violent storm uncovers a long-concealed treasure. In the tempest's aftermath, his grandparents vanish. Completely alone, the bewildered boy seizes upon the opportunity to leave his forest home at last.Out in the wider world, Rupert encounters new friends...