For 10 points, name this author of The Devil's Elixir and "The Sandman."
In one story by this author, a man gets invited to a concert and ball where he shouts the performing woman's name, which causes people to laugh at him; that man later asks that same woman various questions, to which she only ever responds "Ach! Ach!" One of this author's protagonists tries to throw his fiancee out of a tower before jumping to his death from that tower; that character earlier fell in love with an (*) automaton he watched in a telescope. This author wrote of a man who dies from hysterical laughing after being saved from his doppelganger by Pietro Bellocampo, and he also created the musician Johannes Kreisler. This creator of Medardus wrote about Clara's madman fiancee Nathanael who thinks that Coppelius steals the eyes of children like the title monster. For 10 points, name this author of The Devil's Elixir and "The Sandman."
In one story by this author, a man gets invited to a concert and ball where he shouts the performing woman's name, which causes people to laugh at him; that man later asks that same woman various questions, to which she only ever responds "Ach!
Ernst Theodor Amadeus Hoffmann [or Ernst Theodor Wilhelm Hoffmann]