At the Medical Center where Burke and Galen brought Virdon for surgery, a young woman was treated as a slave by the other humans, including her father, Travin. They said the girl had no name. She told them she had killed her brother when he was 16; he had been in a hunting accident and was taken to the hospital for a blood transfusion, and she had 'killed' him with her 'evil blood'. As only her blood was compatible with Virdon's, she was persuaded to give another blood transfusion. After Virdon recovered from his operation, he asked for the name of the girl - her name was Arna.