In the second and subsequent editions, Walpole acknowledges authorship of his work, writing: "The favourable manner in which this little piece has been received by the public, calls upon the author to explain the grounds on which he composed it" as "an attempt to blend the two kinds of romance, the ancient and the modern. In the former all was imagination and improbability: in the latter, nature is always intended to be, and sometimes has been, copied with success...". There was some debate at the time about the function of literature; that is, whether works of fiction should be representative of life, or more purely imaginative (i.e. natural vs. romantic). The first edition was well received by some reviewers who understood the novel as belonging to medieval fiction, "between 1095, the era of the First Crusade, and 1243, the date of the last", as the first preface states; and some referred to Walpole as an "ingenious translator". Following Walpole's admission of authorship, however, many critics were loath to lavish much praise on the work and dismissed it as absurd, fluffy, romantic fiction, or even unsavory or immoral.