The third booklet contained "The Little Mermaid" and "The Emperor's New Clothes", and it was published on 7 April 1837. "The Little Mermaid" was completely Andersen's creation though influenced by De la Motte Fouqué's "Undine" (1811) and the lore about mermaids. This tale established Andersen's international reputation. The only other tale in the third booklet was "The Emperor's New Clothes", which was based on a medieval Spanish story with Arab and Jewish sources. On the eve of the third installment's publication, Andersen revised the conclusion of his story, (the Emperor simply walks in procession) to its now-familiar finale of a child calling out, "The Emperor is not wearing any clothes!"