“No more upset than the little one you brought into our home,” said her mother, almost as if she didn’t want Carmella to be there. “Though she is pretty.” “Did you have any twins in your school?” asked Dr. Mengele. Lena noticed a strange glint in his eyes when he said the word twins. She tired of his constant discussion about nature versus nurture, and she sensed his interest in twins wasn’t necessarily for the good of the children. “No,” she lied, thinking of the Nicholas sisters. “Why?” “Pity. I’ve been entertaining the idea of twin studies. They look alike, certainly, but how much alike are they truly? I’ve even heard one twin can feel the other’s pain.” “Please don’t go off into your scientific studies again, Josef,” said Irene. “Not everybody thinks like a doctor. Honestly, most

