“I’m afraid half of these things are controlled substances.” “Yes, yes I know,” Helen says, sliding an old, laminated ID card from her purse. “But I’m a doctor.” The nurse takes the card. Looks at the photo of a woman in her late fifties, then at the person standing before her. “Dr. Helen Cartwright,” Kathy reads aloud. “Head of Pediatric Cardiology, Sydney General Hospital.” “That’s right. Not just an old woman after all.” “Cartwright . . .” Kathy says slowly. “Helen Cartwright . . . why does your name seem familiar?” “The Cartwright Aortic Stem Valve. I invented it in 1983.”
