A NURSE'S DUTY It was surprising how much courage it took to walk into the bedroom of someone who has tried to choke you, Nancy thought. But she need not have worried. Lavinia Barclay was her usually friendly self and greeted Nancy cheerily. "Good morning. And to what do I owe the pleasure of this early morning visit from the doctor?" Nancy answered evasively. "I think he was invited to sleep over. That's all." She changed the subject. "Did you sleep well?" "Beautifully," her patient answered. Evidently, Lavinia Barclay had no notion of what had happened the night before. And, to Nancy, this was the most frightening thing of all...