A lyrical and exciting wander through the wonders of the underworld

One of the best books I have ever read, unbelievably believable. His eclectic journey into caves, caverns, chasms, catacombs, mines and underground rivers is breathtaking. As well as meticulous detail and research the book benefits from his evocative writing style. The livings characters he meets on this journey though geological time are as engaging as their surroundings. The overarching message however comes across loud and clear: we are destroying the world as we know it and most of its inhabitants. I found it a profoundly depressing book but this is not a reason not to read it, it is the very reason that we must.