A Pure HeartBy: Rajia Hassib 'EXQUISITE' Vanity Fair 'REMARKABLE . . . POISED, INTELLIGENT, VERY GROWN UP WRITING, EQUALLY AT HOME IN ALL ITS ENVIRONMENTS.' Guardian 'AS HONEST AS IT IS ENGROSSING' NPR 'A TIMELY, SWEEPING TALE . . . BEAUTIFULLY WRITTEN.' Boston Globe 'ARTICULATES THE FULL BODIED CHORUS OF EGYPT'S VOICES' New York Times Sisters Rose and Gameela Gubran could not have been more different. Rose, an Egyptologist, married an American journalist and