KEEPS POTIONS FROM BECOMING POISONS and ANTIDOTES ARE ANTI-DON'TS UNLESS APPROVED BY A QUALIFIED HEALER. There was also a large portrait of a witch with long silver ringlets which was labelled: Dilys Derwent St Mungo's Healer - Headmistress of Hogwarts School of Witchcraft and Wizardry - Dilys was eyeing the Weasley party closely as though counting them; when Harry caught her eye she gave a tiny wink walked sideways out of her portrait and vanished. Meanwhile at the front of the queue a young wizard... read more
