The time is the 23rd century, and ships are crawling outward from Earth into the interstellar depths. It will take centuries for the ships to make it to the closest planets, but then travel will be instantaneous, because the ships carry matter transmitters not subject to the limitations of light speed. At last one ship has made contact with the stars. A shorter version of this story was published under the same title in 1965.

Enemy Stars 1993, Baen Books

ISBN-13: 9780671653392

Mass-market paperback

The Enemy Stars 1979, Coronet Books, London

ISBN-13: 9780340164808