Cagliostro in Paris is a historical novel by W.R.H. Trowbridge. The book is set in 1785 Paris and follows the life of Count Alessandro di Cagliostro, an Italian adventurer and occultist who is famous for his involvement in the Affair of the Diamond Necklace. The story is told from the perspective of Cagliostro's loyal servant, Balsamo, who accompanies him on his journey to Paris. As Cagliostro navigates the complex social and political landscape of...