Vaughn Eisenhart's slim, dark-haired wife, born Margaret of the Redpath family, and the unspoken leader of the Sisters of Oriza - the women of the Calla who have for generations been keeping alive a particular tradition of throwing razor-sharp ceremonial plates with the kind of accuracy a less prepared visitor would assume impossible. When Roland's ka-tet realises the Sisters are not the decorative society they at first appear, Margaret is the one who steps forward to demonstrate - cutting the head off a stuffy-guy at fifty yards in a single fluid throw that settles the matter without further argument.