This book is part of a book series called Bulls-Eye .

This book is aimed at children in secondary school. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read.

There are 127 pages in this book. This book was published 1990 by Oxford University Press .

The following day The New York Times said in an obituary: "John Wyndham did more than any other British writer since H G Wells to make science fiction popular in this country. " Critics ascribed his success to the fact that his plots, however fantastic, were characterised by inventiveness, clarity and a profound sympathy for mankind in the nuclear age.