The books follow Karl Sten, a young manborn and raised on the dangerous factory world of Vulcan and saved from life as an outlaw by the head of Imperial Intelligence, Ian Mahoney. Mahoney takes Sten from the terrible world of his birth and enlists him in the military. Sten is thrust into a world of espionage, covert military actions, and galactic politics. His original training is in the super-secret covert ops group known as Mantis. The missions and actions taken are usually known only to a select few. A series of crucial missions ensures that Sten rises swiftly in rank until he becomes a troubleshooter and friend to the Emperor himself. The series of eight books are set three thousand years in the future. A vast empire, limited only by the galaxy itself, is ruled by the Eternal Emperor, a man who appears to be in his thirties but is in fact over three thousand years old. He has mastered death in a way no one has guessed since the beginning of his rule. The source of his power is a powerful fuel called Anti-Matter Two. It is what fuels everything from the star ships that link the Empire, to industrial factories, to camping heaters. Only he controls its supply and price. And only he knows where to find it. It is only for this reason that he is able to rule.
Book synopses
'—Sten joins a special ops team and causes the downfall of Vulcan
'—Sten's team overthrows a corrupt government
'—Bodyguard Captain Sten foils a murder plot against the Emperor
'—Ambassador Sten tries to bring peace to a planet
'—Rebel Sten defeats the Eternal Emperor
Themes
At the end of the last book of the series there is a short epilogue, in which the authors state that they view the series as one novel in eight parts. They also explain, that they wrote the book as a response to the trend of other science fiction authors to pick monarchy as the future form of government in their books. To make the point that monarchy is not a viable form of government, they chose to write about a working-class hero, and incorporated the theme of "power corrupts". The epilogue also claims that the series counts a little over 1 million words.