The Dark Side Of The Sun

Probability Math: the science of foretelling the future.
For Dom Sabalos, heir to an immensely rich family, its forecasts were curiously contradictory: he would be assassinated, andafter that, find the fabulous, almost mythical, world of the Jokers, who were only known by a few incredible artifacts scattered throughout the Galaxy.
Any good P-Mathematician could find out this information. Somebody certainly wanted to prove P-Math wrong as far as Dom was concerned, and make sure that once he was dead, he stayed dead. A robot assassin, with built-in 'luck', had been put on his tail, but what was it that protected Dom every time the assassin struck?
To be sure, he had an excellent robot servant, Isaac; (class 5with Man-Friday subcircuitry),. a planet (the First Syrian Bank)as a god-father, a determined and protective grandmother (who looked as if she had been born aged eighty), a security chief who even ran checks on himself, and a home world, where a missing hand was only a minor mishap and even death was not always fatal
but what protected Dom on his search for the world which he knew lay on the dark side of the sun?