At the moment when Voyager 1 is launched into space carrying its famous golden record, a baby of unusual perception is born to a single mother in Philadelphia. Adina Giorno is tiny and jaundiced, but she reaches for warmth and light. As a child, she recognizes that she is different: She possesses knowledge of a faraway planet. The arrival of a fax machine enables her to contact her extraterrestrial relatives, beings who have sent her to report on the oddities of Earthlings.

For years, as she moves through the world and makes a life for herself among humans, she dispatches transmissions on the terrors and surprising joys of their existence. Then, at a precarious moment, a beloved friend urges Adina to share her messages with the world. Is there a chance she is not alone?