....Science, of course, has a habit of turning the fantastic into the prosaic. But 150 years on from Verne’s work, researchers have actually begun a project to drill through the Earth’s crust for the first time, hoping to penetrate more than 5km beneath the sea bed to reach the mantle below. Needless to say, it is most unlikely to reveal monsters living inside the Earth. But if we do look down in search of life, what do we find? The best way to find underground creatures is to travel into the depths of a cave. The first things you’re likely...