Mirabelle is desperate for a brand-new pair of roller skates, but Mum and Dad say she's got to earn the money to pay for them herself. It's time for Mirabelle to take charge, and set up her own business! Can she make a success of her get-rich-quick schemes? Or will being the boss end up being more trouble than it's worth? Harriet Muncaster Mirabelle Takes Charge Book