Northanger Abbey Mysteries of Udolpho," as it is the Gothic novel most frequently mentioned within this text"." Notably, Jane Austen sold the manuscript of Northanger Abbey to the same firm that published Radcliffe's novel in 1794. This outside text is first mentioned in Chapter Six, when Isabella and Catherine discuss the mystery "behind the black veil," and further establish their friendship based on their similar interests in novel genre, and their plans to continue reading other Gothic novels together. Austen further satirizes the novel through Catherine's stay at Northanger Abbey, believing that General Tilney has taken the role of Gothic novel villain.
Northanger Abbey (2007 film) did not state what happened to them in the novel, but Davies believed Frederick would have seduced Isabella. During an interview with Marion McMullen from the "Coventry Evening Telegraph", Davies explained that the Gothic elements to the novel gave him inspiration to add dream sequences and fantasies to the script. He told McMullen, "I've been very faithful to the book, but one of the differences has been writing the scenes showing Catherine's fantasies. Catherine is a great reader of horror fiction – the gothic novel was fairly popular in those days, like a young girl today who would read a