Yet Cleon knows there are those who would see him falll - those whom he would destroy if only he could read the future.Hari Sheldon has come to Trantor to deliver his paper on psychohistory, his remarkable theory of prediction. Little does the young Outworld mathematician know that he has already sealed his fate and the fate of humanity. For Hari possesses the prophetic power that makes him the most wanted man in the Empire...the man who holds the key to the future.