Does anyone know whether Darby's ‘Conversations on Romanism’ are real or fictional conversations in which he explains Catholic doctrine and his objections to it in order to convince his readers/listeners of biblical truth? AI suggests that Mr N., for example, refers to a certain Edward Nangle, a Protestant missionary to the Irish-speaking Catholic inhabitants of Achill Island, an island off the west coast of Ireland, who, although a contemporary of Darby, probably never met him.