Beginning during the latter years of the reign of Emperor Cleon I, Seldon's work brings him into the world of galactic politics, and takes him to the height of Imperial power as Cleon's First Minister, after the mysterious disappearance of his previous First Minister, Eto Demerzel (whom Seldon knows as R. Daneel Olivaw). Seldon becomes First Minister to the Emperor, but loses the position ten years later after the Emperor is assassinated.