Then they went to each of the areas: first to Madame Malkins for the robes; to the potions supplies, where Hermione stocked up, avoiding Tonk's eye as she purchased over 60 galleons worth of items and then requested further information about their mail order; to Flourish and Blotts, when Bellatrix purchased an advanced book titled Duels and Duel-Nots on top of their school studies; before they ended up passing the Quidditch shop.