Two years after the storm raised by the Carta Atenagórica (Letter Worthy of Athena) and, precisely two years before her death, Sor Juana sent to an Academy of Portuguese nuns (A Casa do Prazer) —assiduous readers not only of religious matters— a set of 20 riddles that have received little attention from the critics of her work. The brevity of these writings and their hermetic nature —taking into account the fact that the author has not given them a ultimate solution— have postponed being given the importance they deserve, for they might be the last finished work —conceived as a unit in itself— of the New-Spanish writer. What importance does this score of writings have, written by a nun to the amusement of other nuns? What significance do they acquireby being one of her last written works after having complied with the silence imposed on it? Are they an atypical curiosity, a ...