<Li> In some English editions of Heidi the names of the goats are translated into English (Little Swan and Little Bear), while other editions use their original Swiss - German names, Schwanli and Baerli . In Heidi Grows Up only the names Schwanli and Baerli are used . </Li> <P> In 1990, screenwriters Weaver Webb and Fred & Mark Brogger, and director Christopher Leitch, produced Courage Mountain, starring Charlie Sheen and Juliette Caton as Heidi . Billed as a sequel to Spyri's story, the film is anachronistic in that it depicts Heidi as a teenager during World War I, despite the fact that the original novel (where Heidi is only five years old) was published in 1881 . </P> <P> In April 2010, a Swiss professorial candidate, Peter Buettner, uncovered a book written in 1830 by the German author Hermann Adam von Kamp . The 1830 story is titled "Adelaide: The Girl from the Alps" (German: Adelheide, das Mädchen vom Alpengebirge). The two stories share many similarities in plot line and imagery . Spyri biographer Regine Schindler said it was entirely possible that Spyri may have been familiar with the story as she grew up in a literate household with many books . </P>

On which mountain does heidi live with her grandfather