I can see how you have had trouble finding out about it. It is a rather obscure topic. The english wikipedia merely mentions that it is an aspect of
balinese mythology but there is no page for it or description.
I have found a few pages however they were originally written in Indonesian and the translator does not work perfectly so you have to concentrate to
understand what is being talked about to get to the pages follow these links (sorry for their length)
translate.google.com...://id.wikisource.org/wiki/Calon_Arang&sa=X&oi=translate&resnum=4&ct=result&prev=/search%3Fq%3D
calon%2Barang%26hl%3Den%26safe%3Dactive%26rlz%3D1C1CHMB_en-GBGB301GB306
and
translate.google.com...://id.wikipedia.org/wiki/Calon_Arang&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3Dc
alon%2Barang%26hl%3Den%26safe%3Dactive%26rlz%3D1C1CHMB_en-GBGB301GB306
this link here gives a brief over-view of the storyline although it is not directly linked as it is talking about a play of it
www.planetmole.org...
there would also appear to be a 1985 film on calon arang for more information on it search the imdb database.

