Beneath the pyramids of Egypt lies a lost underworld of catacombs, hewn chambers, and cave tunnels. They are alluded to in ancient texts and Arab legends, but have been left unexplored until today. They have now been rediscovered and investigated for the first time by science and history writer Andrew Collins. What exactly does this subterranean realm tell about the pyramids, their relationship to the stars, and the mythical origins of Egyptian civilization? Lavishly illustrated with color photos, this is a breathtaking personal journey of exploration and discovery.