Set in the year 2375, the novel follows Tom Rice, a young archaeologist attached to a two-year dig on the planet of Highby V. He is searching for artifacts belonging to a long-lost and ancient race known simply as The High Ones. Throughout known space, details of this billion-year old civilization have been uncovered on many planets. What seems like a fairly straightforward expedition becomes a galactic odyssey when an artifact never seen before is uncovered. This device hints that perhaps the High Ones are not extinct at all. But, if they are not, then where are they? And will this lead to the culmination of Mankind’s greatest challenge or greatest disaster?