The complete set of novels from The Rational Series, including "Why Is Unit 142957 Sad? (or The Tin Man's Heart), "The Rats and the Saps", "Whirlpool", and ut of Time". The first novel is about a love affair between a robot and the beautiful programmer who created it, in an epic spanning millions of years and two galaxies. The second novel is about a war between Sapiens and a new species of humans, called Rationals. The third novel is an experimental...