"Les mystères d'Udolphe" by Ann Ward Radcliffe is a Gothic novel published in 1794. This archetypal Gothic romance follows Emily St. Aubert through a series of dark misadventures after her parents' deaths. Forced to live with her aunt and the sinister Italian nobleman Montoni, Emily endures supernatural terrors in the gloomy castle of Udolpho, where mysterious curtains hide traumatic secrets. As she struggles against Montoni's schemes and searches for her lost love Valancourt, Emily encounters ghostly apparitions, disappearances, and revelations about her family's hidden past.
Wikipedia page about this book: en.wikipedia.org/wiki/The_Mysteries_of_Udolpho Wikipedia page about this book: fr.wikipedia.org/wiki/Les_Myst%C3%A8res_d%27Udolphe