This author incorporated friends like Theodor von Hippel and David Koreff into a Decameron-esque collection that outlines his elusive Serapion principle. The protagonist of a story by this author receives a jewelry box containing the couplet “a lover who is afraid of thieves / is not worthy of love.” Ernst Jentsch (15[1])analyzed the “intellectual (15[2])uncertainty” (15[1])of a story (15[1])by this author (15[1])in which a telescope salesman advertises (15[1]-5[1])“pretty (*) eyes, (10[1]-5[1])pretty eyes.” (10[3]-5[1])Along (10[1])with (10[1])Poe, (-5[2])this author is often cited (10[2])as the creator of the modern (-5[1])detective story for his novella Mademoiselle de Scuderi. (10[1])Sigmund Freud’s (10[1])essay “The Uncanny” (10[2])examines (10[1])a story (10[1])by this (-5[1])author in which Nathanael realizes (10[1])that (10[1])Olympia (10[1])is an automaton created by Coppelius, (10[1]-5[2])whom he associates (10[1])with the title mythical night visitor. For 10 points, name this German (10[1])author (10[1])of “The Sandman.” (10[1])■END■ (10[10]0[5])