A Novel of DiscworldBook - 1998
There are strange goings-on at the Opera House in Ankh-Morpork. A ghost in a white mask is murdering, well, quite a lot of people, and two witches (it really isn't wise to call them "meddling, interfering old baggages"), or perhaps three, take a hand in unraveling the mystery.
Publisher: New York, N.Y. : HarperPrism, , c1995
Characteristics: 358 p. ; 18 cm