A scientist sits at the helm of a revolutionary new drilling machine of his own design, called the Iron Mole. At the pull of a lever, the machine lurches forward and, in a wake of flying soil and rock, vanishes underground.
The scientist and his plucky assistant find themselves in a strange subterranean cavern – a labyrinthine world populated by prehistoric beasts and primitive Palaeolithic peoples. So begins their great adventure at the ‘centre of the Earth’… or at least as Jules Verne imagined it.
Back in the real world, no Iron Mole or any amount of derring-do would enable a scientist to travel anywhere close to heart of our planet. In fact, the deepest we’ve ever managed to drill is a paltry 15km (nine miles) and that’s only 0.5 per cent of the 3,000km (1,900-mile) distance to the core.