The Empire, led by Grand Moff Hissa and Supreme Prophet Kadann, attempt to install Trioculus as Emperor, claiming that he is Palpatine's son. Palpatine's real son, according to the series, is a madman named Triclops. Both Trioculus and Triclops are mutants who have three eyes. The books were written by a married couple, Paul and Hollace Davids, and illustrated by Karl Kesel. The series was collected in two trilogies as Star Wars Book One and Star Wars Book Two.