in the middle of No One Mourns the Wicked:
Ozian: Glinda! Exactly how dead is she?
Glinda: Well, there has been much rumor and speculation... innuendo, outuendo... but let me set the record straight. According to the Time Dragon Clock, the melting occurred at the 13th hour; a direct result of a bucket of water thrown by a female child. Yes, the Wicked Witch of the West is dead!
(courtesy of
http://libretto.musicals.ru/text.php?textid=609&language=1) I really spend a little too much time on this board!