"Aline et Valcour, ou Le Roman Philosophique. Tome 4" by marquis de Sade is an epistolary novel written between 1786-1789 and published in 1793. This philosophical work interweaves letters about virtuous love between Aline and Valcour with exotic travel narratives through Europe and Africa. At its heart lie contrasting visions of two kingdoms: the brutal, cannibalistic Butua and the utopian island paradise of Tamoé, ruled by philosopher-king Zamé, exploring themes of virtue, vice, and political ideals. (This is an automatically generated summary.)