There is a secret passage through time ...and it leads all the way to the end of Eternity. But the journey has a terrible cost. It alters not only the future but he "present" in which we live. A century after the publication of H. G. Wells' immortal The Time Machine , Stephen Baxter, today's most acclaimed new "hard SF" author, and the acknowledged Clarke, returns to the distant conflict between the Eloi and the Morlocks in a story that is at once an exciting expansion, and a radical departure based on the astonishing new understandings of quantum physics.