Wow Im surprised to learn via google that the book was released in 1975, growing up in Australia and being seven at the time I've never heard of it, till 2002 with the movie opening in cinemas.
Well I didn't want to get into it, but he's a Satanist.
Every full moon he sacrifices 4 puppies to the Dark Lord and smears their blood on his paino.
This should help you understand the score for Wicked a little bit more.
Tazber's: Reply to
Is Stephen Schwartz a Practicing Christian