The Goddess of Atvatabar - William Richard BRADSHAW

An accident during a polar expedition leads the crew of the Polar King to the discovery of an entire world within the earth. Within the interior realm lies a vast ocean with continents and civilisations unknown to the outside world. The societies within possess new technologies and magics unknown to the outside world and these are lovingly described in great detail by the author. The crew proceed to explore and in true Victorian fashion then conquer the new world. An extraordinary feat of imagination and inventiveness by this obscure author. - Summary by Nigel Fisher