After the disaster of the Mars mission, Helen wakes up from cryosleep in a derelict shuttle. Some of her crew are dead, some missing. They have drifted for decades and are utterly lost. All she has left are messages from Earth-the last link with her daughter Sofia-and the certainty that they will die alone out there. But are they truly alone? This is the conclusion of a mind-twisting trilogy on space, time and the strength of our dreams.