"I like Mureth," declared Lady Shaw. "There's something about Mureth." "It does things to people," Mamie agreed. Lady Shaw considered this. It sounded silly, but was it really silly. People said that Mamie Johnstone was a fool, and it was true that sometimes she said things that sounded foolish ... but the things she did were wise. Mamie Johnstone, sister of Caroline Dering whom we met in Vittoria Cottage, and her husband Jock...