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? The conclusion of a mind-twisting trilogy on space, time and the strength of our dreams.