Perfect crime,' he said softly. 'Yes?' 'Persuade an innocent, idealistic young girl that the future of the human race depends on her sacrificing her own life. She will come into hospital as trustingly as a lamb to the slaughter. She will welcome the implantation of a baby that will kill her. She'll lie there while her brain is destroyed for nine whole months, and no police will arrest you, no court will judge you, you'll get away scot free. At the end of nine months she'll be taken off life support and she'll be completely dead. And no one will be blamed.

Eleanor should never have told them about Park's house, but she'd been dying to tell somebody. (This was how people ended up in jail after committing the perfect crime.)