Harry does not need to be prompted to explain how he bought his precious bottle of mud. One day, he went to an exclusive shop in London and asked for 'Myrolite', the shop assistant looked puzzled and Harry repeated the word, stressing each syllable. When the woman shook her head in bewilderment, Harry went on to explain the 'myrolie' was a hard, amber-like substance which could be used to remove freckles. This explanation evidently conveyed something to the woman who searched shelf after shelf. She produced all sorts of weird concoctions, but none of them met with Harry's requirements. When Harry put on his act of being mildly annoyed, the assistant promised to order some for him.