The Palace of Love (in Russian)

Kirth Gersen sets his sights upon the mysterious Viole Falushe. After several false leads, Gersen backtracks the villain to his point of origin - Earth Then the trail moves outward again, to the starworlds and a place back of beyond where there is actually a Palace of Love.

The Demon Princes is a five-book series of science fiction novels by Jack Vance, which cumulatively relate the story of one Kirth Gersen as he exacts his revenge on five notorious criminals, collectively known as the Demon Princes, who carried his village off into slavery during his childhood. Each novel deals with his pursuit of one of the five Princes.