Dorrie and the Wizard's Spell

This is Dorrie. She is a witch. A little witch. The Big Witch is her mother, and Gink is her black cat. Dorrie is busy helping out at the Library Bazaar. But she's so busy that she doesn't even notice when her mother, the Big Witch, accidentally drinks Wizard Wink's magic potion and disappears! Will Dorrie solve the mystery and break the spell?