Then, when Samuel and Marjorie had reached a stage in which they sometimes touched each other's arms gently, just to show that they were very good friends, Marjorie and her husband had one of those ultrasensitive, supercritical quarrels that couples never indulge in unless they care a great deal about each other. It started with a cold mutton-chop or a leak in the gas-jet--and one day Samuel found her in Taine's, with dark shadows under her brown eyes and a terrifying pout.