The immortals

the long version

"Rosa Hyde is the daughter of a time-traveller, stuck in the year 1945. Forced to live through it again, and again, and again. The same bulletins, the same bombs, the same raucous victory celebrations. All Rosa has ever wanted is to be free from the family who keep her there. At last she breaks out and falls through time. slipping from one century to another, unable to choose where she goes. And she is not alone. Wandering with her is Tommy Rust, time-gypsy and daredevil, certain in the depths of his being that he will live forever. Their journeys take them from the ancient shores of forming continents to the bright lights of future cities. They find that there are others like them. They tell themselves that they need no home; that they are anything but lost. But then comes Harding, the soldier who has fought for a thousand years, and everything changes. Could Harding hold the key to staying in one place, one time? Or will the centuries continue to slip through Rosa's fingers, as the tides take her further and further away from everything she has grown to love?"--Publisher's description.