The Trolley Witch worked on the Hogwarts Express, offering a variety of snacks to pupils on their journey to and from their school. With a trolley full of Cauldron Cakes, Pumpkin Pasties, Liquorice Wands and Chocolate Frogs, the Trolley Witch was always a welcome appearance on the train. In Harry Potter and the Cursed Child, however, Albus Potter and Scorpius Malfoy would discover another side to her when they tried to escape the train.