Hand in the Sand: She helps make a truth serum for you to use.
Swept Away: You must go into the basement of her store and retrieve her wand, which is locked in a chest that can only be solved by a puzzle. You must do this in order for her to enchant your broom.
While Guthix Sleeps: She will enchant a Snapdragon seed for you.
Betty's Magic Emporium sells the following items: