The Dark Side Of The Sun is the second stand-alone novel by British author, Sir Terry Pratchett. Dom Salabos is about to become Chairman of the Board of the planet Widdershins, orbiting the sun See-Why. He is heir to a fortune, godson of a planetary bank and protected by the most efficient security money can buy. But his father, John Salabos III, an expert in probability maths, died in the Marshes, and Dom is unaware of the prediction of his own death. Instead, he decides he wants to find the elusive Jokers World. Assisted by a phnobe, a swamp ig and a Class 5 robot (with Man-Friday subcircuitry), he finds himself the target of a determined assassin, Ways. This pre-Discworld novel has many of the hallmarks of his later books, but really does not reach their standard. Nonetheless, it is interesting and enjoyable to read early Pratchett for the originality, the inventiveness and the tongue-in-cheek aspect.