A year has passed since Matthew said goodbye to his alien friend, and in the summer holidays he meets Albertine, a mathematical prodigy, with whom he discovers he can communicate telepathically. One day Chocky returns to warn Matthew that they are both in danger. When he returns to tell Albertine, he finds she has disappeared.

A computer programmer invesigates a colleague's death in this ominously prescient tale of big corporations and new technology

Thanks to a nuclear holocaust, the world Ann Burden knew and everyone she ever loved is gone. But her solitude is about to change, and maybe there are worse things than being the last person on earth.