The Demon Princes, Vol. 1: The Star King * the Killing Machine * the Palace of Love - Jack Vance

Together in one volume--three novels from the classic Demon Princes series. The Demon Princes are a race of beings who disguise themselves as humans and delight in power and destruction. The affairs of mere mortals mean little to them and their actions spell doom for millions. Keith Gersen is not a Demon Prince, but he's got a stake in finding five of them--the five who massacred his family and obliterated his planet. Kirth Gersen carries in his pocket a slip of paper with a list of five names written on it. Theses are the names of the five Demon Princes who led the historic Mount Pleasant Massacre, which destroyed not only Kirth's family but his entrire world as well. He roams the universe, searching the endless galaxies of space, hunting down the Demon Princes and exacting his revenge. Three princes will fall before Kirth's work is done, and two more await their doom...