Five intergalactic criminal masterminds raid the tranquil world of Mount Pleasant, leaving behind only ruin and slaughter—and the orphaned child Kirth Gersen, who comes to manhood swearing to take bloody revenge. Now Gersen roams the galaxy, bringing vengeance to the Demon Princes one by one, in Jack Vance's classic series of hardboiled space opera.

Among worlds populated by slave-takers and poisoners, Kirth Gersen is hunting the third Demon Prince, Viole Falushe, an Earthman who conceals his true identity while ruling a remote planet from his decadent Palace of Love. Posing as a journalist and accompanied by the mad poet Navarth, Gersen infiltrates the palace and uncovers a history of erotic obsession. Somewhere among the revelers lurks Falushe, whom Gersen schemes to identify, before delivering harsh justice.