What if the cataclysmic Tunguska explosion of 1908 was caused, not by a meteor or a comet, but by a microscopic black hole?
What if that fantastic object - smaller than an atom, older than the stars, heavier than a mountain - is still down there, orbiting deep inside the earth, slowly consuming the planet?
What if only a rookie government agent and an uncannily-insightful consultant stand between a renegade Russian billionaire and his plans to use the black hole to change history - or end it?
What if it's all true?
Winner of the Gold Medal for Science Fiction in Foreword Magazine's Book of the Year Awards
Winner of the Independent Publishers Association's Ippy prize for Best Fantasy/Science Fiction novel of 2004