Note: Series numbering is from the unnumbered sequence of listings at German Wikipedia, as contents of Märchenalmanach auf das Jahr 1828 für Söhne und Töchter gebildeter Stände (1827), in the Wilhelm Hauff list of works (although not in the "Märchen-Almanach" article linked above). The frame story, number 0 in the ISFDB series, contains "Das kalte Herz" in two parts that would be numbers 2 and 5 in the series. Hauff "wrote three cycles of literary Fairytales – "Die Karavane" ["The Caravan"], "Der Scheik von Allesandria und seine Sklaven" ["The Sheikh of Alexandria and his Slaves"] and "Das Wirthshaus im Spessart" ["The Inn in the Spessart"] – published in three Märchenalmanache (anth 1826; anth 1827; anth 1828), selections from which have been variously translated as ... {Clute lists 7 UK and US collections, 1840s to 1905.} Many of the tales are in an Arabian Nights mode (see Arabian Fantasy); Transformations proliferate, sometimes very frighteningly." --SFE: Encyclopedia of Fantasy (1997), biographical entry by John Clute (brackets original, braces and emphasis added):