Discworld is at it again. In the Opera House of Ankh-Morpork, a ghost has appeared. Agnes Nitt has changed her mind about becoming a witch and decided to become a singer instead. And two of the most famous and charming ladies in Lancre—Mother Weatherwax and Granny Yag—have come up with yet another grand plan. This time it’s to rescue their talkative student—Agnes, or Perdita, or whatever she asked them to call her. With the upcoming visit to the Temple of Music by the two most famous witches of Discworld, dreadful chaos and deadly entertainment are expected…